Tunable dual-band band-pass filter

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United States of America Patent

PATENT NO 9979064
SERIAL NO

14808183

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Abstract

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A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod having a circular cross section is provided in the space above the respective stubs and another dielectric rod having a circular cross section is provided in the space above the half-wavelength resonator protrusions.

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Patent Owner(s)

Patent OwnerAddress
THE JAPAN STEEL WORKS LTDTOKYO
UNIVERSITY OF YAMANASHI4-37 TAKEDA 4-CHOME KOFU-SHI YAMANASHI 4008510

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kishida, Kazuhito Tokyo, JP 11 42
Kitada, Noritaka Yokohama, JP 3 6
Sato, Yasuo Yokohama, JP 144 2132
Sekiya, Naoto Kofu, JP 5 6
Terao, Katsuhiro Tokyo, JP 2 5

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