Beam controllable microstrip antenna with switching diode

Author

Nishiyama, Eisuke ; Hisadomi, Ryoji ; Aikawa, Masayoshi

Author_Institution

Fac. of Sci. & Eng., Saga Univ.

fYear

2006

fDate

9-14 July 2006

Firstpage

2337

Lastpage

2340

Abstract

In this paper, the beam controllable array antenna is proposed. The characteristics of the antenna are analyzed accurately by the FDTD method. The resonant frequency of the parasitic patch is changed by the diode bias polarity because the distribution of surface current on the parasitic patch is simply controlled by the diode on/off condition. As the mutual coupling of the patches depends on the resonant frequency of the parasitic patch, the phase of excitation voltage is changed by the diode bias. The results of the analysis make it clear that the proposed array antenna has a capability of easy beam control

Keywords

current distribution; diodes; finite difference time-domain analysis; microstrip antenna arrays; switching circuits; FDTD method; beam controllable microstrip antenna array; diode bias polarity; diode on-off condition; excitation voltage; mutual coupling; parasitic patch; resonant frequency; surface current distribution; switching diode; Antenna arrays; Antenna feeds; Antenna radiation patterns; Diodes; Microstrip antenna arrays; Microstrip antennas; Phased arrays; Probes; Resonant frequency; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1711061

Filename

1711061