Title :
Impedance matching for RF-MEMS based microstrip patch antenna
Author :
Sharma, Arvind Kumar ; Gupta, Neeraj
Author_Institution :
Dept. of Electr. & Electron. Eng., Birla Inst. of Technol. & Sci. Pilani, Pilani, India
Abstract :
An impedance matching technique for RF-MEMS switch based microstrip patch antenna is considered in this paper to improve the return loss and impedance bandwidth. It is observed that the impedance matching can be improved by using a lumped element based matching network. The impedance matching technique is performed by using Smith Chart and verified through Ansoft HFSS simulations. An inductor of 1.62 nH in series with CPW transmission line can be used as a lumped element matching network to improve the return loss upto -18dB at resonant frequency of 5 GHz with adequate impedance bandwidth.
Keywords :
coplanar transmission lines; coplanar waveguides; impedance matching; losses; lumped parameter networks; microstrip antennas; microswitches; microwave integrated circuits; Ansoft HFSS simulation; CPW transmission line; RF-MEMS switch; Smith Chart; frequency 5 GHz; impedance bandwidth; impedance matching technique; lumped element matching network; microstrip patch antenna; return loss; Coplanar waveguides; Impedance; Impedance matching; Microstrip; Microstrip antennas; Patch antennas; Switches; Microstrip Patch Antenna; RF MEMS switch; Resonance Frequency; Return loss;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2014 11th International Conference on
Conference_Location :
Nakhon Ratchasima
DOI :
10.1109/ECTICon.2014.6839775
