Bidirectional slot antenna with LP and CP radiation capabilities intended for foliage obstacle detection

Author

Nikolaou, Symeon ; Heracleous, Constantinos ; Panayiotou, Christos G. ; Milis, Marios

Author_Institution

Electr. Eng. Dept., Frederick Univ., Nicosia, Cyprus

fYear

2013

fDate

7-13 July 2013

Firstpage

652

Lastpage

653

Abstract

This paper presents a microstrip fed rectangular slot antenna on FR4, with bidirectional radiation pattern, that can radiate a wave with either circular polarization (CP) or linear polarization (LP). Its dual operation can become switchable with the integration of appropriate switches. The antenna operates at 2.4 GHz, and can be easily integrated with commercially available sensors using IEEE 802.15.4 protocol. The sensors network can detect the presence of foliage obstacles exploiting the communication link degradation caused by the attenuation and depolarization of the transmitted through foliage signal. The proposed antenna is used as the customized communication antenna of the sensor motes.

Keywords

UHF antennas; Zigbee; antenna feeds; antenna radiation patterns; microstrip antennas; protocols; slot antennas; wireless sensor networks; CP radiation capabilities; FR4; IEEE 802.15.4 protocol; LP radiation capabilities; attenuation; bidirectional radiation pattern; bidirectional slot antenna; circular polarization; communication link degradation; customized communication antenna; depolarization; dual operation; foliage obstacle detection; foliage obstacles; foliage signal; frequency 2.4 GHz; linear polarization; microstrip fed rectangular slot antenna; sensor motes; sensor network; Antenna radiation patterns; Microstrip; Microstrip antennas; Power cables; Sensors; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6710986

Filename

6710986