✦ LIBER ✦

A novel broadband patch antenna for universal UHF RFID tags

✍ Scribed by Jun Zh. Huang; Peng H. Yang; Weng Cho Chew; Terry Tao Ye

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 323 KB
Volume: 52
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.25560

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A compact broadband patch antenna is proposed in this paper for global ultra‐high‐frequency (UHF) RF identification (RFID) applications. The antenna is composed of four synchronous shorted patches that resonate at four different frequencies, broadening its impedance bandwidth. A central loop is incorporated to feed the four patches simultaneously, which provides the required input reactance for matching to the chip as well. Since the current of neighboring patch is vertical to each other that they can radiate well without canceling each other, the gain is stable over the whole frequency band. Prototype is fabricated and tested, which shows that the impedance bandwidth can cover the whole UHF RFID band (840 MHz – 960 MHz), and the read range is over 3 meters when EIRP is set to 30 dBm at the reader. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2653–2657, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25560

📜 SIMILAR VOLUMES

A novel broadband antenna for passive UH

A novel broadband antenna for passive UHF RFID transponders offering global functionality

✍ Zhijiang Fang; Ronghong Jin; Junping Geng; Jing Sun 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 263 KB

## Abstract In this letter, a novel broadband dipole antenna for UHF RFID transponder, which offers global functionality across different regulatory areas is proposed. The proposed antenna has a measured bandwidth from 0.83 to 1 GHz (18.5%) where the power reflection coefficient is below −10 dB for

Broadband and size-reduced microstrip an

Broadband and size-reduced microstrip antenna with double T-feed for UHF RFID tags

✍ Zhi-Jun Tang; Jie Zhan; Yi-Gang He 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 324 KB

## Abstract A novel radio frequency identification tag antenna at 915 MHz using a bent meandered strip, a U‐microstrip patch and an adjustable double T‐feed is proposed, which is suitable for attaching to dry objects with various content. The antenna's size is 21.2 × 63.0 mm^2^. The antenna achieve

Miniaturized patch antenna for RFID tags

Miniaturized patch antenna for RFID tags on metallic surfaces

✍ Abdelnasser A. Eldek 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 464 KB

## Abstract The majority of commercial ultra high frequency radio frequency identification tags are based on the dipole antenna, whose performance degrades significantly when the tag is placed near a conducting surface. In this article, we present a radio frequency identification patch tag to opera

A dual-resonant patch antenna for miniat

A dual-resonant patch antenna for miniaturized active RFID tags

✍ Wei-Jun Wu; Ying-Zeng Yin; Yong Huang; Jie Wang; Zhi-Ya Zhang 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 431 KB

## Abstract A dual‐resonant patch antenna applicable to active radio frequency identification (RFID) tags is designed. The designed antenna has been skillfully integrated with the active RFID tag circuit. The antenna consists of two parts. One part comprises stacked shorted patches and a ground pla

Two novel extremely low-profile slot-cou

Two novel extremely low-profile slot-coupled two-element patch antennas for UHF RFID of people

✍ Milan Švanda; Milan Polívka 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 349 KB

## Abstract Novel type of extremely low‐profile low‐dielectric constant substrate antenna, based on two‐element slot‐coupled shorted‐patch structure for UHF RFID applications has been developed. We use two different methods for tuning the complex input impedance—dipole excitation and direct excitat

Orthogonally proximity-coupled patch ant

Orthogonally proximity-coupled patch antenna for a passive RFID tag on metallic surfaces

✍ Hae-Won Son; Gil-Young Choi 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 105 KB

## Abstract A new wideband rectangular patch antenna for radio frequency identification tags mountable on metallic surfaces is presented. An orthogonally proximity‐coupled feed structure, in which the direction of the microstrip feedline is orthogonal to that of the resonant length of the radiating