Vol. 60

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2015-11-23

RF MEMS Based Half Mode Bowtie Shaped Substrate Integrated Waveguide Tunable Bandpass Filter

By Muhammad Zaka Ur Rehman, Zuhairi Baharudin, Mohd Azman Zakariya, Mohd Haris Md. Khir, Muhammad Taha Jilani, and Muhammed Talha Khan
Progress In Electromagnetics Research C, Vol. 60, 21-30, 2015
doi:10.2528/PIERC15091407

Abstract

A tunable planar bandpass filter based on a technique that utilizes a half mode substrate integrated waveguide (HMSIW) and novel inter-resonator coupling is presented. The tunable HMSIW based bandpass filter is implemented using two half triangle shaped cavities coupled together through inter-resonator coupling forming half mode bowtie-shaped structure. The bowtie-shaped filter exhibits similar performance as found in rectangle- and circle-shaped SIW based bandpass filters. This concept reduces the circuit foot print, and miniaturization high quality factor is maintained by the structure. The tunable filter utilizes packaged RF MEMS switches; switching between different configurations of switches achieves four distinctive frequency states between 4.8-5.3 GHz. The filter maintains a constant absolute 1 dB bandwidth of 100±10 MHz for all frequency states.

Citation


Muhammad Zaka Ur Rehman, Zuhairi Baharudin, Mohd Azman Zakariya, Mohd Haris Md. Khir, Muhammad Taha Jilani, and Muhammed Talha Khan, "RF MEMS Based Half Mode Bowtie Shaped Substrate Integrated Waveguide Tunable Bandpass Filter," Progress In Electromagnetics Research C, Vol. 60, 21-30, 2015.
doi:10.2528/PIERC15091407
http://www.jpier.org/PIERC/pier.php?paper=15091407

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