Title :
Gain enhancement of a dual feed microstrip array antenna using parasitic elements
Author :
Hiroshi Satow;Eisuke Nishiyama;Ichihiko Toyoda
Author_Institution :
Graduate School of Science and Engineering, Saga University, Saga, Japan
Abstract :
In this paper, an in-phase/anti-phase dual feed microstrip array antenna with parasitic elements is proposed to improve the antenna´s gain and it is experimentally evaluated. The proposed antenna provides various kinds of functionality such as direction-of-arrival estimation, beam steering and polarization switching with a simple structure. Better than 2-dB gain enhancement is expected by using the parasitic elements. The separation and height of the parasitic elements are also discussed. The separation of 0.8λ0 with height of 0.5λ0 provides the highest gain for both the in-phase and anti-phase feeds.
Keywords :
"Microstrip antenna arrays","Microstrip","Microstrip antennas","Antenna feeds","Gain"
Conference_Titel :
Antennas and Propagation (ISAP), 2015 International Symposium