A Novel Planar Extended Doublet Filter with Substrate Integrated Waveguide Cavity Resonators
2013 ◽
Vol 631-632
◽
pp. 962-966
Keyword(s):
A novel planar extended doublet filter based on substrate Integrated waveguide cavity resonators was proposed for the first time. This filter consists of a main doublet with an additional resonator grown in one of the branches. The source and load are coupled to both branches of the doublet in order to generate two transmission zeros. By employing the combinational structure of the TE101-mode and TE102-mode of the SIW cavity resonators, the negative coupling coefficient required for the design of a single-layer cross-coupled SIW bandpass filter is implemented. The measurement results show the return loss of the implemented filter is above 13dB, the insertion loss is below 4.238dB with only 0.56% of the bandwidth.
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2021 ◽
Vol 11
(5)
◽
pp. 3747
Keyword(s):
2018 ◽
Vol 10
(4)
◽
pp. 405-411
◽
2018 ◽
Vol 5
(2)
◽
pp. 149
Keyword(s):
2011 ◽
Vol 308-310
◽
pp. 2279-2285
2019 ◽
Vol 8
(6)
◽
pp. 2357-2360
Keyword(s):
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