900 MHz和2.45 GHz紧凑型双频圆极化贴片天线，用于RFID应用

2015 Conference on Microwave Techniques (COMITE) Pub Date : 2015-04-22 DOI:10.1109/COMITE.2015.7120226

M. Taouzari, J. El aoufi, A. Mouhsen, H. Nasraoui, O. El Mrabat

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引用次数: 6

摘要

为了实现射频识别(RFID)应用中的双频特性，提出了一种紧凑的圆极化微带天线设计，采用缺陷接地结构(DGS)技术将双频天线小型化，整个尺寸为38×40×1.58 mm3。该天线可同时覆盖超高频(740MHz ~ 1GHz)和慢高频(2.35 GHz ~ 2.51GHz)，回波损耗<;- 10db时，3db轴比带宽在较低频段(900mhz)约为110mhz。

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900 MHz and 2.45 GHz compact dual-band circularly-polarized patch antenna for RFID application

A compact design of a circularly-polarized microstrip antenna in order to achieve dual-band behavior for Radio Frequency Identification (RFID) applications is presented, defected ground structure (DGS) technique is used to miniaturize and get a dual-band antenna, the entire size is 38×40×1.58 mm3. This antenna was designed to cover both ultra-height frequency (740MHz ~ 1GHz) and slow height frequency (2.35 GHz ~ 2.51GHz), return loss <; -10 dB, the 3-dB axial ratio bandwidths are about 110 MHz at the lower band (900 MHz).

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2015 Conference on Microwave Techniques (COMITE)

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