Title :
A 4-bit MEMS phase shifter at 24 GHz based on lateral MEMS switches
Author :
Lai, Shih-Wei ; Kiang, Jean-Fu
Author_Institution :
Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A 4-bit phase shifter at 24 GHz is designed and implemented using a network of MEMS switches to select over 16 different phases. Four sections of transmission-line pair are tailored to provide phase difference of 22.5°, 45°, 90°, and 180°, respectively. Full-wave electromagnetic simulation has been conducted using ADS and Sonnet. The scattering parameters |S11|, |S22|, |S21| are lower than -10.9, -8.8, -5.5 dB, respectively. The maximum phase error is about 2.2°.
Keywords :
microswitches; microwave phase shifters; microwave switches; transmission lines; ADS simulation; MEMS phase shifter; Sonnet simulation; frequency 24 GHz; full-wave electromagnetic simulation; lateral MEMS switch network; phase difference; phase error; scattering parameters; storage capacity 4 bit; transmission-line pair; Micromechanical devices; Microswitches; Microwave circuits; Phase shifters; Transmission lines;
Conference_Titel :
Applications of Electromagnetism and Student Innovation Competition Awards (AEM2C), 2010 International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-6416-6
DOI :
10.1109/AEM2C.2010.5578765
