A compact V-band 2-bit reflection-type MEMS phase shifter

被引:17
作者
Kim, HT [1 ]
Park, JH [1 ]
Yim, J [1 ]
Kim, YK [1 ]
Kwon, Y [1 ]
机构
[1] Seoul Natl Univ, Sch Elect Engn, Ctr Millimeter Wave Integrated Syst 3D, Seoul, South Korea
关键词
MEMS switch; reflection-type phase shifter;
D O I
10.1109/LMWC.2002.803198
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Air-gap overlay CPW couplers and low-loss series metal-to-metal contact microelectromechanical system (MEMS) switches have been employed to reduce the loss of reflection-type MEMS phase shifters at V-band. Phase shift is obtained by changing the lengths of the open-ended stubs using series MEMS switches. A 2-bit (135degrees) reflection-type MEMS phase shifter showed an average insertion loss of 4 dB with return loss better than 11.7 dB from 50 to 70 GHz. The chip is very compact with a chip size as small as 1.5 mm x 2.1 mm.
引用
收藏
页码:324 / 326
页数:3
相关论文
共 9 条
[1]   RF-MEMS switches for reconfigurable integrated circuits [J].
Brown, ER .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1998, 46 (11) :1868-1880
[2]   CPW MMIC coupler based on offset broadside air-gap coupling fabricated by standard airbridge processes [J].
Kim, HT ;
Ko, W ;
Kim, DH ;
Kwon, Y ;
Seo, KS .
ELECTRONICS LETTERS, 2001, 37 (06) :358-359
[3]   A new micromachined overlay CPW structure with low attenuation over wide impedance ranges and its application to low-pass filters [J].
Kim, HT ;
Jung, S ;
Park, JH ;
Baek, CW ;
Kim, YK ;
Kwon, Y .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2001, 49 (09) :1634-1639
[4]   Low-loss micromachined inverted overlay CPW lines with wide impedance ranges and inherent airbridge connection capability [J].
Kwon, Y ;
Kim, HT ;
Park, JH ;
Kim, YK .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2001, 11 (02) :59-61
[5]   ANALOG REFLECTION TOPOLOGY BUILDING-BLOCKS FOR ADAPTIVE MICROWAVE SIGNAL-PROCESSING APPLICATIONS [J].
LUCYSZYN, S ;
ROBERTSON, ID .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1995, 43 (03) :601-611
[6]   X-band RF MEMS phase shifters for phased array applications [J].
Malczewski, A ;
Eshelman, S ;
Pillans, B ;
Ehmke, J ;
Goldsmith, CL .
IEEE MICROWAVE AND GUIDED WAVE LETTERS, 1999, 9 (12) :517-519
[7]  
MIHAILOVICH RE, 2001, IEEE MICROWAVE WIREL, V11
[8]  
NAGHED M, 1998, IEEE MTT S, P893
[9]  
PARK JH, 2001, 11 INT C SOL STAT SE, P1540