scholarly journals A Novel Reconfigurable MMIC Antenna with RF-MEMS Resonator for Radar Application at K and Ka Bands

Author(s):  
Bassem Jmai ◽  
Salem Gahgouh ◽  
Ali Gharsallah
Keyword(s):  
Rf Mems ◽  
Author(s):  
JINCHAO LI ◽  
Zeji Chen ◽  
Wenli Liu ◽  
Jinling Yang ◽  
Yinfang Zhu ◽  
...  

Abstract This work presents a novel ultra-high frequency (UHF) Lamb mode Aluminum Nitride (AlN) piezoelectric resonator with enhanced quality factors (Q). With slots introduced in the vicinity of the tether support end, the elastic waves leaking from the tether sidewalls can be reflected, which effectively reduces the anchor loss while retaining size compactness and mechanical robustness. Comprehensive analysis was carried out to provide helpful guidance for obtaining optimal slot designs. For various resonators with frequencies ranging from 630 MHz to 1.97 GHz, promising Q enhancements up to 2 times have all been achieved. The 1.97 GHz resonator implemented excellent f × Q product up to 6.72 × 1012 and low motional resistance down to 340 Ω, which is one of the highest performances among the reported devices. The devices with enhanced Q values as well as compact size could have potential application in advanced RF front end transceivers.


2008 ◽  
Vol 2008.8 (0) ◽  
pp. 153-154
Author(s):  
Naoki MATSUZUKA ◽  
Yoshitada ISONO
Keyword(s):  
Rf Mems ◽  

Author(s):  
Nan Wang ◽  
Yao Zhu ◽  
Chengliang Sun ◽  
Mingbin Yu ◽  
Gengli Chua ◽  
...  
Keyword(s):  
Rf Mems ◽  

2003 ◽  
Author(s):  
Sami K. Myllymaki ◽  
E. Ristolainen ◽  
P. Heino ◽  
A. Lehto ◽  
K. Varjonen
Keyword(s):  
Rf Mems ◽  

2012 ◽  
Vol 457-458 ◽  
pp. 278-282
Author(s):  
Ying Qian Jia ◽  
Zheng Ping Zhao

RF-MEMS resonator can meet the development of communication and attract great attention now. Applied to electric system, mechanical resonator caused some difficulties to the circuit design, the electric parameters should be extracted. Through mechanical-electrical analogy the electronic parameter is extracted and the electrical equivalent circuit established. ANSYS is used to simulate the vibration of the disk. Using the electronic parameters, an oscillator is designed and simulated.


Author(s):  
Zeji Chen ◽  
Wenli Liu ◽  
Quan Yuan ◽  
Yinfang Zhu ◽  
Jinling Yang ◽  
...  

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