A frequency-independent phase shifter and low-profile phased array module

Author

Wang, J.J.H. ; Tillery, J.K. ; Bohannan, K.E. ; Thompson, G.T.

Author_Institution

Wang Electro-Opto Corp., Marietta, GA, USA

Volume

1

fYear

1997

fDate

13-18 July 1997

Firstpage

320

Abstract

We have demonstrated a robust and stable frequency-independent phase-shifting mechanism using the phase pattern of the spiral antenna, which has been investigated without success with enormous efforts and expense during the past two to three decades. The integration of this phase switching into the low-profile wideband spiral-mode microstrip (SMM) antenna readily yields a low-profile phased array module with bandwidth over 10:1. This array module also has potentially lower insertion loss, and higher power-handling capability, than the PIN-diode phase shifters. In addition, this integrated antenna/phase-shifter appears readily applicable to PSK (phase shift keying), including BPSK (binary PSK), QPSK (quadrature PSK), and MPSK (M-ary PSK, N bits) in digital communication systems.

Keywords

antenna phased arrays; microstrip antenna arrays; microwave phase shifters; spiral antennas; BPSK; MPSK; PSK; QPSK; bandwidth; digital communication systems; frequency-independent phase shifter; insertion loss; integrated antenna/phase-shifter; low-profile phased array module; low-profile wideband spiral-mode microstrip antenna; phase switching; power-handling capability; spiral antenna; Bandwidth; Broadband antennas; Frequency; Microstrip antenna arrays; Microstrip antennas; Phase shift keying; Phase shifters; Phased arrays; Robustness; Spirals;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest

Conference_Location

Montreal, Quebec, Canada

Print_ISBN

0-7803-4178-3

Type

conf

DOI

10.1109/APS.1997.630150

Filename

630150