Miniature circularly polarized antenna for SAW sensor measurements

2009 IEEE MTT-S International Microwave Workshop on Wireless Sensing, Local Positioning, and RFID Pub Date : 2009-11-03 DOI:10.1109/IMWS2.2009.5307867

M. Monedero, S. Tourette, P. Le Thuc, C. Luxey, R. Staraj

引用次数: 3

Abstract

A novel miniature antenna for a wireless pressure measurement system based on a passive Surface-Acoustic-Wave (SAW) sensor is presented in this paper. The SAW sensor used for this application works at 434MHz in the Industrial-Scientific-Medical (ISM) band. The miniature antenna (λ/12 × λ/17 × λ/63) [6 × 4 × 1.2cm3] consists of a Planar Inverted F Antenna with a spiral slot. The antenna presents a radiation efficiency of 50%, a bandwidth of 1.75MHz (0.4%) and a left hand circular polarization (LHCP). The SAW sensor as well as the antenna design and the association of both elements are exposed.

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用于SAW传感器测量的微型圆极化天线

提出了一种基于无源表面声波传感器的微型无线压力测量天线。用于此应用的SAW传感器工作在工业-科学-医疗(ISM)频段的434MHz。微型天线(λ/12 × λ/17 × λ/63) [6 × 4 × 1.2cm3]由带螺旋槽的平面倒F天线组成。该天线的辐射效率为50%，带宽为1.75MHz(0.4%)，具有左手圆极化(LHCP)。SAW传感器以及天线设计和这两个元素的关联是暴露的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2009 IEEE MTT-S International Microwave Workshop on Wireless Sensing, Local Positioning, and RFID

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