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

fYear

2014

fDate

14-17 May 2014

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2014 11th International Conference on

Conference_Location

Nakhon Ratchasima

Type

conf

DOI

10.1109/ECTICon.2014.6839775

Filename

6839775