Reconfigurable Sensing Antenna: A Slotted Patch Design With Temperature Sensation

Author

Yang, Fei ; Qiao, Qiquan ; Virtanen, Janne ; Elsherbeni, Atef Z. ; Ukkonen, Leena ; Sydanheimo, Lauri

Author_Institution

Electrical Engineering Department, The University of Mississippi, University, MS, USA

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

632

Lastpage

635

Abstract

A reconfigurable sensing antenna (RSA) concept is presented in this letter, where a physical sensor is integrated into a reconfigurable antenna as the control unit. The basic structure and operation principle of the RSA are described in details. To illustrate this RSA concept, a slotted patch antenna with temperature sensation is designed, fabricated, and tested. In this design, distilled water is integrated into the antenna substrate as the sensing material because its permittivity changes with temperature. Thus, the antenna frequency is reconfigured according to the environmental temperature. The measurement results demonstrate an effective sensing range from 17 $^{\\circ}{\\rm C}$ to 70 $^{\\circ}{\\rm C}$ . Due to the passive and low-cost features, the proposed RSA has a promising potential in wireless sensing network applications.

Keywords

Patch antennas; Reconfigurable architectures; Resonant frequency; Temperature sensors; Patch antenna; reconfigurable antennas; reconfigurable sensing antennas (RSAs); wireless sensor;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2202871

Filename

6212305