TY - GEN
T1 - RF performance of rec-BCPW and arc-BCPW DMTL millimeter-wave phase shifters
AU - Wu, Qun
AU - Jin, Lukui
AU - Wu, Yuming
AU - Tang, Kai
AU - Li, Le Wei
PY - 2009
Y1 - 2009
N2 - In this paper, novel RF distributed MEMS transmission line (DMTL) phase shifters based on rectangular and arched bridge-like coplanar waveguides (rec-BCPW and arc-BCPW) structure are proposed and the comparison of their configuration and RF performance is also presented. A CST software is used for the modeling, simulation and optimization from 30 to 40GHz. Simulation and optimization results show that both the rec-BCPW and arc-BCPW phase shifters make an improvement on the conventional phase shifter in S parameters. However, at "down" state of 35GHz resonant frequency, the return loss (S 11)of arc-BPCW phase shifter is 3dB less than that of rec-BPCW, while at "up" state, the return loss of arc-BCPW gets 15dB higher. For phase shift, arc-BCPW has an average gain of 30° from 30GHz to 40GHz than rec-BCPW. As of configuration, arc-BCPW suffers a larger size for a higher arched bridge and a wider MEMS bridge space. As the common feature of BCPW, interference among the adjacent components can be decreased. The fabrication and measure of rec-BCPW and arc-BCPW phase shifters will be carry out in subsequent research.
AB - In this paper, novel RF distributed MEMS transmission line (DMTL) phase shifters based on rectangular and arched bridge-like coplanar waveguides (rec-BCPW and arc-BCPW) structure are proposed and the comparison of their configuration and RF performance is also presented. A CST software is used for the modeling, simulation and optimization from 30 to 40GHz. Simulation and optimization results show that both the rec-BCPW and arc-BCPW phase shifters make an improvement on the conventional phase shifter in S parameters. However, at "down" state of 35GHz resonant frequency, the return loss (S 11)of arc-BPCW phase shifter is 3dB less than that of rec-BPCW, while at "up" state, the return loss of arc-BCPW gets 15dB higher. For phase shift, arc-BCPW has an average gain of 30° from 30GHz to 40GHz than rec-BCPW. As of configuration, arc-BCPW suffers a larger size for a higher arched bridge and a wider MEMS bridge space. As the common feature of BCPW, interference among the adjacent components can be decreased. The fabrication and measure of rec-BCPW and arc-BCPW phase shifters will be carry out in subsequent research.
KW - DMTL phase shifter
KW - RF MEMS
KW - arc-BCPW
KW - rec-BCPW
UR - http://www.scopus.com/inward/record.url?scp=77950688249&partnerID=8YFLogxK
U2 - 10.1109/APMC.2009.5384178
DO - 10.1109/APMC.2009.5384178
M3 - Conference contribution
AN - SCOPUS:77950688249
SN - 9781424428021
T3 - APMC 2009 - Asia Pacific Microwave Conference 2009
SP - 532
EP - 535
BT - APMC 2009 - Asia Pacific Microwave Conference 2009
T2 - Asia Pacific Microwave Conference 2009, APMC 2009
Y2 - 7 December 2009 through 10 December 2009
ER -