Design of dual‐mode dual‐band rectangular waveguide filtering antenna

A new class of compact rectangular waveguide filters is proposed in this paper. The key element is a square ridge resonator realized within a rectangular waveguide supporting the fundamental TE10 mode. The square ridge can support two modes resonating along orthogonal directions in the gap between the ridge and the opposite waveguide wall. This structure enables dual-mode degeneracy without the need of oversized cavities, thus allowing for considerable size reduction with respect to the conventional dual-mode implementations. Different filter structures employing one or more ridges within short waveguide sections are proposed as attractive solutions for pseudo-elliptic band-pass or dual-band filters. The experimental results of a manufactured fourth-order pseudo-elliptic pass-band filter validate the feasibility of the proposed class of filters.

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Dual-Band Dual-Mode Textile Antenna/Rectenna for Simultaneous Wireless Information and Power Transfer (SWIPT)

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2021.3070230 ◽

2021 ◽

pp. 1-1

Author(s):

Mahmoud Wagih ◽

Geoffrey S. Hilton ◽

Alex S. Weddell ◽

Steve Beeby

Keyword(s):

Dual Band ◽

Power Transfer ◽

Dual Mode ◽

Textile Antenna

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3-D Printed Dual-Band Filter Based on Spherical Dual-Mode Cavity

IEEE Microwave and Wireless Components Letters ◽

10.1109/lmwc.2021.3080430 ◽

2021 ◽

pp. 1-1

Author(s):

Yuan Chen ◽

Gang Zhang ◽

Jiasheng Hong ◽

Zhengyu Sun ◽

Jiquan Yang ◽

...

Keyword(s):

Dual Band ◽

Dual Mode ◽

Band Filter

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A miniature dual-band filter based on microstrip dual-mode resonators

Technical Physics Letters ◽

10.1134/s1063785012090180 ◽

2012 ◽

Vol 38 (9) ◽

pp. 839-842 ◽

Cited By ~ 1

Author(s):

B. A. Belyaev ◽

A. M. Serzhantov ◽

V. V. Tyurnev

Keyword(s):

Dual Band ◽

Dual Mode ◽

Band Filter

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Millimeter-wave dual-mode and dual-band switchable Gilbert up-conversion mixer in 65-nm CMOS process

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078721000155 ◽

2021 ◽

pp. 1-5

Author(s):

Fang Zhu ◽

Guo Qing Luo

Keyword(s):

Millimeter Wave ◽

Complementary Metal Oxide Semiconductor ◽

Local Oscillator ◽

Metal Oxide Semiconductor ◽

Oxide Semiconductor ◽

Dual Band ◽

Cmos Process ◽

Pumping Power ◽

Dual Mode ◽

Dc Power

Abstract In this paper, a millimeter-wave (MMW) dual-mode and dual-band switchable Gilbert up-conversion mixer in a commercial 65-nm complementary metal oxide semiconductor (CMOS) process is presented. By simply changing the bias, the proposed CMOS Gilbert up-conversion mixer can be switched between subharmonic and fundamental operation modes for MMW dual-band applications. With a low local oscillator pumping power of 3 dBm and low dc power consumption of 6 mW, the proposed CMOS Gilbert up-conversion mixer exhibits a measured conversion gain of −0.5 ± 1.5 dB from 37 to 50 GHz and 2.5 ± 1.5 dB from 17.5 to 32 GHz for the subharmonic and fundamental modes, respectively.

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