Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
270 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 56, NO. 2, FEBRUARY 2008 A Monolithic Phased Array Using 3-bit
 

Summary: 270 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 56, NO. 2, FEBRUARY 2008
A Monolithic Phased Array Using 3-bit
Distributed RF MEMS Phase Shifters
Kagan Topalli, Student Member, IEEE, Özlem Aydin Civi, Senior Member, IEEE, Simsek Demir, Member, IEEE,
Sencer Koc, and Tayfun Akin, Member, IEEE
Abstract--This paper presents a novel electronically scan-
ning phased-array antenna with 128 switches monolithically
implemented using RF microelectromechanical systems (MEMS)
technology. The structure, which is designed at 15 GHz, consists of
four linearly placed microstrip patch antennas, 3-bit distributed
RF MEMS low-loss phase shifters, and a corporate feed network.
MEMS switches and high- metal­air­metal capacitors are
employed as loading elements in the phase shifter. The system
is fabricated monolithically using an in-house surface microma-
chining process on a glass substrate and occupies an area of 6 cm
5 cm. The measurement results show that the phase shifter can
provide nearly 20 /50 /95 phase shifts and their combinations at
the expense of 1.5-dB average insertion loss at 15 GHz for eight
combinations. It is also shown by measurements that the main
beam can be steered to required directions by suitable settings of

  

Source: Akin, Tayfun - Department of Electrical and Electronics Engineering, Middle East Technical University

 

Collections: Engineering