@article{scholars6206,
            year = {2015},
         journal = {Progress In Electromagnetics Research C},
       publisher = {Electromagnetics Academy},
           pages = {21--30},
          volume = {60},
            note = {cited By 8},
             doi = {10.2528/PIERC15091407},
           title = {RF MEMS based half mode bowtie shaped substrate integrated waveguide tunable bandpass filter},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949759503&doi=10.2528\%2fPIERC15091407&partnerID=40&md5=a491214e484dba4dfe24889dbd373127},
        keywords = {Bandpass filters; Microwave circuits; Resonators; Substrate integrated waveguides; Waveguides, Half-mode substrate integrated waveguides; High quality factors; Resonator coupling; RF-MEMS; RF-MEMS switches; Shaped structures; Tunable band-pass filters; Tunable filters, Waveguide filters},
        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{\^a}??5.3 GHz. The filter maintains a constant absolute 1 dB bandwidth of 100 {\^A}{$\pm$} 10 MHz for all frequency states. {\^A}{\copyright} 2015, Electromagnetics Academy. All rights reserved.},
          author = {Ur Rehman, M. Z. and Baharudin, Z. and Zakariya, M. A. and Khir, M. H. M. and Jilani, M. T. and Khan, M. T.},
            issn = {19378718}
}