Title :
Optimization of a center-slotted active patch antenna
Author :
Lai, A.K.Y. ; Ng, J.H.H.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
This paper reports the optimization of a center slotted active patch antenna. The antenna was optimized theoretically using an FDTD analysis of its near field standing wave pattern; and experimentally using its bias voltage, injection voltage, and component values to achieve a harmonic level of -20 dBc, SSB phase noise level of -99 dBc/Hz at 10 kHz, sensitivity of -97 dBm and a gain of 4.5 dB. The transceiver has low component count with only two BJTs and one FET and is therefore well suited for low cost and low power application.
Keywords :
UHF antennas; active antennas; antenna radiation patterns; circuit optimisation; finite difference time-domain analysis; microstrip antennas; slot antennas; 1.4 GHz; 4.5 dB; BJT; FDTD analysis; FET; SSB phase noise level; bias voltage; center-slotted active patch antenna; harmonic level; injection voltage; near field standing wave pattern; optimization; transceiver; Amplitude modulation; Antenna accessories; Antenna theory; Finite difference methods; Harmonic analysis; Patch antennas; Pattern analysis; Phase noise; Time domain analysis; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.690868
