Reconfigurable dual-band dipole antenna on silicon using series MEMS switches

Author

Kiriazi, J. ; Ghali, H. ; Ragaie, H. ; Haddara, H.

Author_Institution

Dept. of Electron. & Comput. Eng., Ain Shams Univ., Cairo, Egypt

Volume

1

fYear

2003

Firstpage

403

Abstract

The paper presents a reconfigurable dual-band 4.86 and 8.98 GHz dipole antenna on silicon using series MEMS switches. The effects of series MEMS switches on the antenna performance are studied. The design is performed using the 3D electromagnetic simulator HFSS/sup /spl reg//. Using the designed series MEMS switches, the obtained antenna return loss is -10.2 dB and -21.6 dB, at the lower and upper frequencies, respectively. However, comparable to the case of ideal switches, a frequency shift of 0.4% and of 2.8% at the lower and upper frequencies, respectively, is observed. The antenna, including the MEMS switches, has bandwidth of 1.9% and 13.6% at the lower and upper frequencies, respectively. The antenna directivity is 2 dB at the lower frequency, and is 3 dB at the upper frequency.

Keywords

antenna radiation patterns; dipole antennas; microswitches; microwave antennas; multifrequency antennas; silicon; -10.2 dB; -21.6 dB; 4.86 GHz; 8.98 GHz; Si; antenna directivity; dipole antenna; dual-band antenna; high resistivity silicon; radiation pattern; reconfigurable antenna; series MEMS switches; Bandwidth; Bridge circuits; Contacts; Dipole antennas; Dual band; Frequency; Microswitches; Multifrequency antennas; Silicon; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1217482

Filename

1217482