Power-handling capabilities optimization of MEMS-reconfigurable antennas

Author

Masotti, D. ; Mastri, F. ; Rizzoli, V. ; Costanzo, A.

Author_Institution

D.E.I.S., Univ. of Bologna, Bologna, Italy

fYear

2011

fDate

18-19 April 2011

Firstpage

1

Lastpage

4

Abstract

The paper discusses a rigorous simulation of reconfigurable integrated antennas operated by MEMS switches, based on a combined nonlinear/electromagnetic (EM)/structural approach. The patch antenna is characterized as a linear multiport network by EM analysis. The MEMS are described as nonlinear components by means of their structural-based electromechanical equations. The accuracy of the nonlinear model is validated by comparison with measures. A rigorous analysis of the entire nonlinear (sub)system behavior is then performed by the harmonic balance (HB) technique combined with a numerical implementation of bifurcation theory. This allows an in-depth investigation of the complex stability pattern of the reconfigurable patch antenna including power-handling capabilities depending on MEMS switches position.

Keywords

bifurcation; microstrip antennas; microswitches; EM analysis; MEMS-reconfigurable antenna; bifurcation theory; harmonic balance technique; linear multiport network; patch antenna; power handling capability optimization; reconfigurable integrated antenna; structural based electromechanical equation; Analytical models; Antennas; Clocks; Inspection; Numerical models; Radio frequency; Switches; MEMS; Microstrip antennas; stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC), 2011 Workshop on

Conference_Location

Vienna

Print_ISBN

978-1-4577-0650-9

Type

conf

DOI

10.1109/INMMIC.2011.5773339

Filename

5773339