Title :
Spiral type planer antenna for specified low power radio
Author :
Sasazawa, R. ; Matsui, T. ; Maki, T. ; Karasawa, Y. ; Karasawa, K. ; Ashida, K. ; Akiyama, M. ; Karakama, T. ; Kaneko, T.
Author_Institution :
Nagano Nat. Coll. of Technol., Nagano, Japan
Abstract :
The planar antennas for 315MHz and 430MHz-band that have the collinear and spiral structure are proposed and examined. The antenna´s gains can be high with the collinear structure. The size of the antennas can be small with the spiral structure. From the results, for 315MHz and 430MHz, the maximum value of the absolute gain were -1.04dBi at 135°, 0.52dBi at 125°, respectively. The antennas are commercialized in January 2014.
Keywords :
planar antennas; spiral antennas; collinear planar antenna; frequency 315 MHz; frequency 430 MHz; specified low power radio; spiral type planar antenna; Antenna measurements; Antenna radiation patterns; Dipole antennas; Planar arrays; Receiving antennas; Spirals; Transmitting antennas;
Conference_Titel :
Consumer Electronics (GCCE), 2014 IEEE 3rd Global Conference on
Conference_Location :
Tokyo
DOI :
10.1109/GCCE.2014.7031111
