DocumentCode :
2218632
Title :
B5. Ultra wideband patch antenna and power amplifier transmitter front end
Author :
Khalaf, Loay D. ; Abdelazeez, Mohamed K.
Author_Institution :
Electr. Eng. Dept., Univ. of Jordan, Amman, Jordan
fYear :
2012
fDate :
10-12 April 2012
Firstpage :
45
Lastpage :
51
Abstract :
An ultra wideband (UWB) transmitter front end (RFE) consisting of UWB circular patch antenna and an UWB GaAs common source (CS) power amplifier (PA) for the frequency range 3 to 10 GHz is presented. The patch antenna covers most of the UWB range and has an area of 30×30 squared mm. The UWB patch antenna has a return loss below 10 dB from 3 to 9 GHz, simulated with a port of 50 Ohm impedance. Since the PA and antenna both have variable impedance, the matching is performed simultaneously. The antenna impedance is directly matched to the PA using optimization algorithms. The transmitted power from the antenna is simulated with a variation around 2 dB over the entire frequency range. The PA has a gain varying from 15 to 30 dB to compensate for the antenna impedance variation.
Keywords :
III-V semiconductors; gallium arsenide; microstrip antennas; microwave power amplifiers; optimisation; radio transmitters; ultra wideband antennas; GaAs; UWB circular patch antenna; UWB common source power amplifier; antenna impedance variation; frequency 3 GHz to 10 GHz; optimization algorithms; power amplifier transmitter front end; return loss; ultra wideband patch antenna; variable impedance; Antenna radiation patterns; Educational institutions; Impedance; Patch antennas; Transmitting antennas; Ultra wideband antennas; UWB; impedance matching; optimization; patch antenna; power amplifier; transmitter front end;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radio Science Conference (NRSC), 2012 29th National
Conference_Location :
Cairo
Print_ISBN :
978-1-4673-1884-6
Type :
conf
DOI :
10.1109/NRSC.2012.6208505
Filename :
6208505
Link To Document :
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