Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710986
