rfid active uhf tag list - rfid active uhf tag for sale

rfid active uhf tag wholesalers & rfid active uhf tag manufacturers come from members. We doesn't provide rfid active...

Read more


Website: http://www.infospaceinc.com

Related topics : active uhf rfid tags / active rfid tags for sale / active uhf rfid chip / uhf rfid tag chip / uhf rfid tag reader

Impinj UHF RFID Reader Antenna Portfolio

Impinj's UHF RFID reader antennas ( http://www.impinj.com/RFID_Reader_Ant... ) evolved as innovative solutions to read world problems. The experience gained in solving...

Read more


Website: youtube.com

Related topics : uhf rfid reader antenna / uhf rfid reader chip / uhf rfid tag reader / rfid reader antenna / rfid reader chip

rfid tag – jasminetrias.org

rfid tag solutions tags are types of wireless sensors reader writer passive range .

rfid tag temperature range reader software price .

rfid tag cost range uhf kaufen .

rfid tag china 860 960mhz uhf waterproof with...

Read more


Website: http://jasminetrias.org

UHF RFID ear tag reader - laipsontag.com

UHF RFID ear tag reader

Commodity score

Operation System Microsoft Windows CE 6.0

Communication Interface USB2.0 Device, RS-232

Frequency...

Read more


Website: http://www.laipsontag.com

Related topics : uhf rfid ear tags / rfid ear tag reader / uhf rfid tag reader / rfid ear tag applicator / uhf rfid tags distance

High Integrated UHF RFID Module With PR9200 Chip Long ...

High Integrated UHF RFID Module With PR9200 Chip Long Range 6 Meters Reading

High Integrated UHF RFID Module With PR9200 Chip Long Range 6 Meters...

Read more


Website: https://www.rfidreader-uhf.com

RFIDSWIPE provides Passive & Active RFID solutions in ...

RFID Reader & Products

RFID Readers

Desktop Readers, Mobile Readers, Hand Held Readers, Active Readers, Passive Readers, UHF Readers, HF Readers, USB Readers, Integrated Reader Antenna

Find out...

Read more


Website: http://rfidswipe.com

High Temperature RFID tags - D.O RFID Group

High Temperature RFID tags

High Temperature RFID tags

The UHF RFID Tags are highly durable UHF radio frequency identification (RFID) tags that can be mounted on any surface and supply long read range. The Tags are the most advanced general-purpose UHF RFID tags...

Read more


Website: https://www.dorfidreader.com

Small RFID Tag – UHF 15mm | ADC RFID

Description

Product Description

ADC RFID small RFID tag - UHF 15mm, UHF0049, is a small size on-metal application RFID tag, it is make by FR4 material, the most stable antenna materials in recent 30 years worldwide. Coming with the copper etched antenna, this UHF GEN2 small RFID tags provides more consistent reading performance when comparing with aluminum etched...

Read more


Website: http://www.adcrfid.com

Smart Card Reader,UHF RFID Reader,HF RFID ... - Syncotek

Video show displayed the world's leading hardware solution issuer SYNCOTEK Designing, researching and manufacturing card readers & RFID card readers. Products cover USB smart card reader writers, magnetic card readers, and HF & UHF RFID readers.

2016/05/31 Tags:

smart card reader for health card integrated...

Read more

Date: 2017-08-18 16:11:58
Website: http://www.syncotek.com

RFID UHF reader module long or range UHF RFID reader ...

RFID UHF reader module

DO RIFD Reader manufacturer rdelivers the size, operating efficiency, power, and flexibility needed to embed long range UHF RFID reader module into applications where small form factor is important.

Features

EPC C1 GEN2(ISO 18000-6C) Protocol

Stable reading range 1-10m

Great reading performance and impact proof

Multi-frequency band supported

Request A Quote

Description

DO RIFD Reader manufacturer provide...

Read more


Website: https://www.dorfidreader.com

LS0831 Passive UHF RFID Tag EPC Gen2 (900MHz)

This �LS0831 Passive RFID Tag works with all LinkSprite UHF RFID tag reader/writer.

The passive RFID tag uses frequency hopping technique. User can deign their own read/write protocol. The read/write distance is over 10M depending on the...

Read more


Website: http://store.linksprite.com

UHF Gen 2 RFID Reader/Writer with a Swivel Read Head ...

This UHF Gen 2 RFID reader/writer belongs to GAO's family of 900MHz (UHF) RFID Readers. The line includes a wide variety of RFID readers to meet customers' different needs. Some featured products in this line include UHF 902 MHz Gen 2 Portable Handheld RFID Reader Writer, 902 MHz RFID Gen 2 UTE Portable Reader Writer and Rugged Handheld Terminal RFID Reader .

For...

Read more


Website: https://www.newswire.com

Related topics : uhf gen 2 portable reader writer / rfid uhf gen 2 reader / handheld uhf rfid reader writer / uhf rfid reader writer / portable rfid reader writer

UHF Handheld RFID Reader from DAILY RFID

DAILY RFID, a Chinese leading manufacturer of RFID readers and RFID tags, has launched high-performance RRU9813 UHF Handheld RFID Reader(DL770), designed as an Industrial PDA integrated with Wi-Fi, Bluetooth and GPRS.

DAILY RFID, a Chinese leading manufacturer of RFID readers and RFID tags, has launched high-performance RRU9813 UHF Handheld RFID Reader(DL770), designed as an Industrial PDA integrated with Wi-Fi, Bluetooth and GPRS.

This RRU9813 UHF Handheld RFID Reader is...

Read more


Website: wireless.electronicspecifier.com

Long range UHF ear tag for large animal tracking - XCC RFID

Products Home > Main products > Industrial RFID tags > Animal tags > Long range UHF ear tag for large animal tracking

Long range UHF ear tag for large animal tracking

Product Origin:

Product Name:�UHF animal ear tag for cattle...

Read more


Website: http://www.xccrfid.com

Related topics : rfid animal ear tag / uhf rfid ear tags / uhf rfid tag range / rfid tag animal tracking / rfid tag reader long range

UHF RFID Tags| UHF RFID Tags from the top RFID manufacturers

Invengo Passive UHF Metal RFID tag

Robust Design & Exceptional Performance The Invengo XCTF-8405-C03 is a passive UHF RFID metal tag designed for superior performance on a variety of surfaces particular on metal. Confirming to EPCglobal Class 1 Gen 2 and ISO 18000-6C this tag shows unsurpassed UHF performance reliable operation in dense reader environment and...

Read more


Website: http://www.rfidtags.com

Related topics : uhf passive rfid tag reader / uhf rfid tags metal / passive uhf rfid tag range / passive uhf rfid tag / uhf rfid tag reader

Invengo | UHF RFID Tag and Inlay Manufacturer

Invengo offers High Quality (ISO-9001) low cost RFIF, UHF, HF passive RFID tags, RFID inlays, smart cards, and RFID readers, at competitive prices.

In January 2008 Invengo announced it's arrival in the western markets with the launch of the 5.8cent inlay. The company has since built a strong reputation for providing High Quality UHF and HF RFID tags, RFID inlays, samrt cards, and RFID readers at the most competive...

Read more


Website: http://www.rfidtags.com

UID Solutions - RFID UHF Malaysia

UID Solutions pride itself as a one stop solution provider in mobile computing and UHF RFID reader. Ideally located in Malaysia, we are able to offer quick professional assistance to our Asean customers. We are dedicated to provide the best fit solution to our customer with our range of high...

Read more


Website: http://myuids.com

Related topics : uhf rfid tag reader / uhf rfid reader project / rfid uhf reader range / rfid reader uhf / uhf rfid system

Download Development and Implementation of RFID Technology ...

Development and Implementation of RFID Technology �

Description of this Ebook

The book generously covers a wide range of aspects and issues related to RFID systems, namely the design of RFID antennas, RFID readers and the variety of tags (e.g. UHF tags for...

Read more

Date: 2014-06-10 22:05:27
Website: http://www.engineering108.com

UHF RFID Tag Suppliers and Factory - UHF RFID Tag free ...

Silicone Wristband RFID Tag RFID Event Wristbands RFID Tracking Chips RFID Festival Wristbands Radio Frequency Tags RFID Chip Bracelet Flat Round Black Color.

1. Silicone wristband rfid tag Rfid event wristbands Rfid tracking chips Rfid festival wristbands Radio frequency tags Rfid chip bracelet flat round black color. 2. Product Introduction Silicon wristband rfid tags from Kimeery Company are Waterproof RFID wristbands suited for... Read More

Watch Wristband Tag It RFID Event Wristbands Passive RFID Labels RFID for Tracking Radio Frequency Chip Good...

Read more


Website: http://www.kimeeryrfidtag.com

RFID Tags | Jewelry RFID Tags | UHF RFID Tags - India

Home » RFID Tags

RFID Tags

We are the manufacturers and exporters of a wide assortment of RFID Tags in India. Our exclusive range of RFID tags are in great demand owing to their robust construction and exact dimensions. We are engaged in offering the best possible security solutions to our clients through our RFID tags. Our clients have accredited us as the best manufacturers and exporters of RFID Tags due to our advanced and sophisticated...

Read more


Website: https://coresonant.appspot.com

UHF Long Range RFID Reader Module - D.O RFID Group

The UHF long range RFID reader module with 4 ports ,user can connect 4 monostatic antennas for long range distance or bulk RFID tags. Multi interface let it enable...

Read more


Website: https://www.dorfidreader.com

Related topics : long range uhf rfid reader module / long range rfid reader module / uhf long distance rfid reader module / rfid uhf long range reader / rfid tag reader long range

RFID card,RFID tag,NFC Tags,the rfid cards manufacturer ...

�������� Copyright | Privacy Statement | RFID Blog | RFID News | sitemap

������What can we do for you?

�����Oprfid.com is a professional RFID card and nfc tags manufacturer in China.We can provides many types of RFID cards and tags with various frequency in different shapes,Our diverse rfid products will meet different needs of fields.We also provide custom design for the special requirement of different rfid applications.

�����What kind...

Read more

Date: 2017-03-03 01:07:29
Website: http://oprfid.com

Related topics : rfid tags and contactless smart card technology / mifare rfid cards / rfid card tag / mifare rfid card reader / rfid proximity card reader

RFID Basics | How to Read & Write RFID Tags

This video explains the basics of what RFID is and walks you through the process...

Read more


Website: youtube.com

Related topics : read write rfid tags / uhf rfid tag reader / rfid tag reader system / write rfid tag / how to read rfid tag

Stick Reader EVO UHF - en.idtronic-rfid.com

Stick Reader EVO UHF is a compact RFID reader and writer with software programmalbe power output. It uses a USB interface for data transfer and power supply. RFID Stick...

Read more


Website: en.idtronic-rfid.com

Related topics : usb uhf rfid reader writer / uhf rfid reader writer / uhf rfid reader software / uhf rfid tag reader / usb uhf rfid reader

Ethernet desktop uhf rfid reader and writer, View desktop ...

carton (reader, power adapter, cable, software-SDK)

Delivery Time

Shipped in 10 days after payment

UHF RFID desktop reader and writer,� UHF Desktop reader,UHF RFID Card Issuer,RFID UHF Desk Reader,UHF Short-range Reader,ethernet desk top uhf rfid reader and writer

��������������������������������������������������������������� ------MR6161E

Functional Description

1�EPC G2 Tag operation function

Reader Support EPC G2 tag: Multi tag query, read, write, selection, Single tag read, write,...

Read more


Website: http://marktrace.en.alibaba.com

Smart Shelf UHF RFID Reader | ADC RFID

ADC RFID PN#UHFR48 is a specially designed UHF EPC GEN2 C1 RFID reader. �thanks for the Fast antenna switching module, the ADC RFID�smart shelf reader has 16 antenna ports, which can connect with 16 different antennas for maximum application coverage.

With Power Over Ethernet functions, the reader is very easy to deploy, and customer do not need to have a...

Read more


Website: http://www.adcrfid.com

RFID -Reader- System - RFID Manufacturer from New Delhi.

RFID -Reader- System

Offering you a complete choice of products which include rfid label, long range uhf rfid reader, uhf reader idt-107 and uhf reader rfid system.

RFID Label

Ask For Price

RFID (pronounced as separate letters) Short for radio frequency identification , a technology similar in theory to bar code identification. With RFID, the electromagnetic or electrostatic coupling in the RF portion of the electromagnetic spectrum is used to...

Read more


Website: http://www.vijaylaxmilabel.com

Related topics : rfid uhf long range reader / rfid uhf reader range / uhf rfid tag reader / uhf rfid reader antenna / long range rfid reader manufacturers

Ultra High Frequency (UHF) RFID Tags & Systems - everything RF

The Ultra High Frequency (UHF) band is the frequency range from 300 MHz to 1 GHz. RFID systems that operate in this frequency band are called Ultra High Frequency (UHF) RFID Systems. UHF RFID tags/readers usually operate at 433 MHz and from 860 to 960 MHz. UHF RFID tags operate using the far-field radiative coupling principle or backscatter coupling principle.

UHF RFID tags have a much higher read range when compared to LF and HF tags. The high...

Read more


Website: https://www.everythingrf.com

UHF Long range RFID Reader | ID VISION

UHF Long range RFID Reader

Read range up to 12 meters (adjustable)

Read Sensitivity: Dual polarization read mode

The UHF RFID reader is an RFID long-range proximity card reader which can simultaneously read multiple passive UHF tags at ranges up to 12m.

The...

Read more


Website: http://www.idvisionme.com

Related topics : rfid uhf long range reader / rfid reader long read range / rfid proximity reader long range / long range passive rfid reader / rfid tag reader long range

Uhf Rfid Rfid Reader Module For Arduino Or To Raspberry Pi ...

Air�cooling(no�need�for�out�install�cooling�fin)

Product Picture:�

Company Information

Shenzhen Vanch Intelligent was established in2005, one of the earliest UHF RFID products manufacture and application solutions supplier in China.VANCH products were widely used in City Smart transportation, Electric power system, asset and logistics management, the world's top 500...

Read more


Website: alibaba.com

Active RFID Tags & Readers - LJ RFID Card

There are many kinds of RFID TAGS,�RFID INLAYS, RFID�READERS�including�full range of RFID product frequency in UHF (900MHz),HF (13.56Mhz) and LF (125KHz) and 2.4GHz active RFID�for sale here, such as RFID wristbads,�and so on. But these various kinds of RFID tags, inlays, RFID cards and readers...

Read more


Website: http://www.lj-rfidcard.com

Phychips PR9200 Chip UHF RFID Reader Module - Products ...

You are here: Products Search   » Products » Phychips PR9200 Chip UHF RFID Reader Module

Phychips PR9200 Chip UHF RFID Reader Module

Date Posted: March 4, 2015

RF power: 10~25dBm...

Read more


Website: http://www.biz4security.com

Related topics : uhf rfid reader chip / uhf rfid reader module / uhf rfid reader software / uhf rfid chip antenna / uhf rfid reader antenna

UHF RFID Tag,RFID Tag Customize,RFID Reader,SLon ...

Actual Price:

Add to Cart

Our price is lower than the manufacturer's "minimum advertised price." As a result, we cannot show you the price in catalog or the product page.

You have no...

Read more


Website: http://www.uhfrfidtag.com

Related topics : rfid tag and reader price / rfid tag reader price / uhf rfid tags price / uhf rfid tag reader / uhf rfid reader price

RFID Applications and Challenges | IntechOpen

RFID reader can access data of RFID tag and transmit the content from RFID tag to middleware which is a necessary component in RFID application system. The middleware is also the interface software that connects new RFID hardware with legacy enterprise IT systems [ 36 ]. Middleware is used to route data between the RFID networks and the IT systems within an organization. It merges new RFID systems with legacy IT systems.

RFID Reader is also called Interrogator. The RFID reader can read and write data of RFID tag via radio frequency. RFID readers can classify serial reader and network reader according to connection...

Read more


Website: intechopen.com

rfid Software - Free Download rfid - Top 4 Download

only freeware

Rfid download notice

Top 4 Download periodically updates software information of rfid full versions from the publishers, but some information may be slightly out-of-date.

Using warez version, crack, warez passwords, patches, serial numbers, registration codes, key generator, pirate key, keymaker or keygen for rfid license key is illegal. Download links are directly from our mirrors or publisher's website, rfid torrent files or shared files from free file sharing and free upload services, including Rapidshare, MegaUpload, YouSendIt, Letitbit, DropSend,...

Read more


Website: top4download.com

LibBest - Library RFID System - UHF Tag

Library RFID System - UHF RFID Tag

RFID UHF Tag (Transponder)

An RFID tag is the most important link in any RFID system. It has the ability to store information relating to the specific item to which they are attached, rewrite again without any requirement for contact or line of sight. Data within a tag may provide identification for an item, proof of ownership, original storage location, loan status and history.

RFID Tag consists of an integrated circuit and an antenna combined to form a transponder. RFID tags collect the energy to operate from a...

Read more

Date: 2016-08-05 09:59:47
Website: http://www.rfid-library.com

Long Range RFID reader with GPS interface. DO RFID reader ...

RFID reader with GPS Description:

Our best passive RFID intelligent intergrated Reader in the world with embedded edge server and a wide selection of interface, including 3G/GSM/GPRS, SMS, Ethernet, USB and Serial. The long range UHF RFID reader has built-in GPS, the location of the reader can be identified when used outdoor. Intergrated RFID reader with GPS is an extremely versatile. all Weather high performance Ruggedized RFID reader with long read range and high read rate.

The RFID reader...

Read more


Website: https://www.dorfidreader.com

ST25RU3992 UHF RFID reader kit USB or UART-using 5dBi PCB ...

Home �::� UHF RFID �::� UHF RFID kit �::� ST25RU3992 UHF RFID reader kit USB or UART-using 5dBi PCB antenn

ST25RU3992 UHF RFID reader kit USB or UART-using 5dBi PCB antenn

$239.00

Description

This UHF RFID kit is a small rifd system. With it you can start to learn how the AS3992 works or apply them to your project to realize intelligent identification ect. The communication interface is�USB interface (HID).

Note:

1). The default working frequency of this reader is Europe standard...

Read more


Website: http://www.soliddepot.com

Related topics : mini usb uhf rfid reader / usb uhf rfid reader / rfid kit uhf / uhf rfid reader antenna / uhf rfid antenna pcb

RFID System Components - Firefly RFID Solutions

Host computer with appropriate application software

RFID Tags

RFID tags are tiny microchips with memory and an antenna coil, thinner than paper and some only 0.3mm across. RFID tags listen for a radio signal sent by a RFID reader. When a RFID tag receives a query, it responds by transmitting its unique ID code and other data back to the reader. There are two types of RFID tags--passive and active.

RFID Readers

RFID readers, also called interrogators query RFID tags in order to obtain identification, location, and other information about the device or product the tag is embedded in. The RF energy from the reader...

Read more

Date: 2015-01-12 21:19:45
Website: http://www.fireflyrfidsolutions.com

Related topics : rfid active reader passive tag / types of rfid tags and readers / active rfid tag and reader / active rfid tag reader / rfid passive tag reader cost

Ultra-High Freq RFID Tags|Data Collection|Diamond Technologies

Ultra High Frequency Tags

A radio-frequency identification tag (RFID tag) is an electronic tag that exchanges data with an RFID reader through radio waves.� Most tags are made up of at least two main parts - an...

Read more


Website: diamondt.com

High Reliability long range rfid readers Portable rfid uhf ...

High Reliability long range rfid readers Portable rfid uhf reader

� � � � P6100 industrial-grade handheld read-write device is a handheld terminal based on Windows CE 6.0. with Strong�RFID, speaking, reading and writing, white card for ordinary RFID tags can be up to 5 meters reading distance,

and have strong more tags conflict resistance. To adapt to the mobile data acquisition under the bad environment

of inside and outside, is the cold storage, port, terminals for mobile application environments such as data

acquisition of the preferred products. In...

Read more


Website: http://www.rfidreaderuhf.com

RFID on open and closed loop for asset tracking and stock ...

The CAEN RFID R1260I Slate USB Desktop UHF RFID Reader is a multiregional UHF RFID reader with integrated antenna for short to medium range applications.

Read more

CAEN RFID R4300P Ion

The CAEN RFID R4300P Ion is optimised for portal applications featuring up to 4 antennas, network interfaces, GEN2 DRM management and high speed Gen2 read rates.

Read more

CAEN RFID R1240I qID

CAEN RFID R1240I qID...

Read more

Date: 2014-05-02 01:54:12
Website: http://www.realtimelogistics.asia

RFID System Components | Starport Technologies LLC

Host computer with appropriate application software

RFID Tags

RFID tags are tiny microchips with memory and an antenna coil, thinner than paper and some only .3mm across. RFID tags listen for a radio signal sent by a RFID reader. When a RFID tag receives a query, it responds by transmitting its unique ID code and other data back to the reader. There are two types of RFID tags-passive and active.

RFID Readers

RFID readers, also called interrogators wuery RFID tags in order to obtain identification, location, and other information about the device or product the tag is embedded in. The RF energy from the reader antenna is...

Read more


Website: http://starporttech.com

Enhanced UHF RFID Sensor-Tag - cst.com

RFID, sensor, tag, UHF

Abstract:

A cost-effective integration of passive UHF RFID tags and sensors is still a challenge. In such a field, authors have already proposed a label-type multi-antenna Sensor-Tag, an RFID device...

Read more


Website: https://www.cst.com

UHF Gen 2 RFID tire tag - NFC Tag - RFID Tag Manufacturers

>> RFID Tag >> RFID Tire tag

���UHF RFID vulcanization tire tag, widely use in the tire factory.

The UHF RFID vulcanization Tire Tag are applied in storing, servicing, anti-stealing and recollecting the tires, for inventory management. the RFID tire tags our company designs are applied in storing, servicing, anti-stealing and recollecting the tires. This type tag owns low price. They are easy to install. When produce the tires, the tags can be inserted in the mold of the tires.

Description:

Chip: Alien/higgs 3 , or NXP

Working Agreement:ISO18000-6C

Memory:...

Read more

Date: 2019-03-13 22:10:11
Website: http://www.oprfid.com

Long Distance UHF RFID Reader Module , Contactless Chip ...

Long Distance UHF RFID Reader Module , Contactless Chip RFID Tag Reader Writer

Long Distance UHF RFID Reader Module , Contactless Chip RFID Tag Reader Writer

Product Details:

MOQ for readers: 1pcs; MOQ for tags: 5,000pcs; Sample order excluded.

Price:

3 working days, please confirm with us in advance for large quantities.

Payment Terms:

EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C

Working...

Read more


Website: http://www.rfidreaderuhf.com

Rfid Reader in Pune - Manufacturers and Suppliers India

Rfid Proximity Card Reader

RFID proximity card reader is a smart card which can be "read" without inserting it into a reader device, as required by earlier magnetic stripe cards such as credit cards. To use, the proximity card is held near an electronic reader unit for a moment. The reader usually produces a "beep" or other sound to indicate the card has been read. Proximity cards typically have...

Read more

Date: 2017-10-05 05:19:10
Website: exportersindia.com

RFID UHF and HF Readers and Adapters | InfoChip

Services

RFID Readers & Adapters

InfoChip offers a variety of RFID readers and mobile handhelds for UHF and HF tags, as well as adapters for mobile devices and smartphones.

UHF Readers

BlueBerry HS

Industry: Mining, Construction, Oil & Gas, Lifting, Power Utilities, Valve, Hose

BlueBerry HS UHF is an RFID key fob reader capable of reading an UHF RFID tag and transmit it via Bluetooth® to any device equipped with that interface. With the push of a single button, this easy-to-use device allows the reading and transmission of RFID tag data to a mobile...

Read more


Website: infochip.com

ISO 18000-6C RFID UHF Desktop Reader Writer with USB Interface

RFID Readers/Writers UHF RFID Readers ISO 18000-6C RFID UHF Desktop Reader Writer with USB Interface

ISO 18000-6C RFID UHF Desktop Reader Writer with USB Interface

RJ-45/ USB2.0 UHF RFID Desktop Reader

Model No.: CXJ-RRW010

Reading distance: 0 10cm (According to the label performance and the label working environment).

Written distance: 0 5cm ( According to the label performance and the label...

Read more


Website: http://www.cxjrfidfactory.com

RFID Manufacturer:B2BManufactures.com: Reliable Taiwan and ...

Hong Kong RFID Co., Ltd.

Being the hub of wide varieties of RFID products & equipments, Hong Kong RFID owns strong factory production lines & R&D expertise specializing in providing innovative & customized RFID solutions & products such as UHF RFID tags, RFID readers, RFID printers & encoders, RFID antenna, smart cards, MiFARE cards, contactless readers. With our strength and devotion, our...

Read more


Website: http://www.manufacturers.com.tw

Related topics : uhf rfid tag reader / rfid tag reader system / designing an uhf rfid reader antenna / rfid tags and contactless smart card technology / uhf rfid reader antenna design