Title :
Analysis and design of a microstrip patch antenna for harmonic tuning in a high-efficiency integrated microwave transmitter
Author :
Baccarelli, Paolo ; Burghignoli, Paolo ; Frezza, Fabrizio ; Galli, Alessandro ; Lampariello, Paolo ; Paulotto, Simone ; Valerio, Guido
Author_Institution :
Univ. of Rome, Rome
Abstract :
A microstrip patch antenna is designed to serve as both the radiator and the harmonic tuner of a power amplifier in a high-efficiency transmitter operating in the Ku-band. A circular-sector patch is used in conjunction with a double tuning stub in order to synthesize the optimal complex input impedance as a load for the power amplifier at the operating frequency. A compact filter is further inserted in the line that feeds the patch in order to achieve a complete impedance mismatch at the third harmonic frequency. Numerical full-wave simulations are reported for both the input impedance and the radiation pattern of the antenna, which confirm the effectiveness of the proposed design.
Keywords :
antenna feeds; antenna radiation patterns; impedance matching; microstrip antennas; microstrip filters; microwave amplifiers; transmitters; tuning; Ku-band; antenna feeds; circular-sector patch; compact filter; harmonic tuning; impedance mismatch; integrated microwave transmitter; microstrip patch antenna; power amplifier; radiation pattern; Harmonic analysis; High power amplifiers; Impedance; Microstrip antennas; Patch antennas; Power harmonic filters; Power system harmonics; Transmitters; Tuners; Tuning;
Conference_Titel :
Microwave Conference, 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-001-9
DOI :
10.1109/EUMC.2007.4405202
