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2015-11-23
RF MEMS Based Half Mode Bowtie Shaped Substrate Integrated Waveguide Tunable Bandpass Filter
By
Progress In Electromagnetics Research C, Vol. 60, 21-30, 2015
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 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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