NDLI: Compact balanced bandpass filter design using miniaturised substrate integrated waveguide cavities

Content Provider	IET Digital Library
Author	Ho, Min Hua Hou, Cheng You Hsu, Chung I G. Lee, Keh Yi
Abstract	The contribution of this work is to propose a compact balanced bandpass filter design using the miniaturised full/half-mode substrate integrated waveguide cavities (SIWCs) together with the microstrip coupling slot feed. The circuit area of the proposed full-mode SIWC is only 4.64% of its conventional SIWC counterpart, and the half-mode SIWC further reduces the circuit area by half. Besides the circuit compactness, the non-coupling of the microstrip and the slot in the common-mode (CM) operation provides an excellent CM signal rejection. Prototypes of two-pole full/half-mode balanced SIWC BPFs are fabricated and measured to validate the circuit design. Agreements between measured and simulated data are observed. The CM signal rejection levels are larger than 45 dB over a wide-frequency range with the passband's differential-mode insertion losses around 1.6 and 0.8 dB for the full- and half-mode designs, respectively.
Starting Page	2030
Ending Page	2033
Page Count	4
ISSN	17518725
Volume Number	12
e-ISSN	17518733
Issue Number	Issue 13, Oct (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/12/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5202
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2018-07-31
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band-pass Filter Circuit Area Circuit Compactness Circuit Design CM Signal Rejection Levels Common-mode Operation Compact Balanced Bandpass Filter Design Filter And Other Network Full- Mode Designs Full-mode SIWC Half-mode Balanced SIWC BPFs Half-mode Designs Half-mode SIWC Microstrip Coupling Slot Feed Miniaturised Full-mode Substrate Integrated Waveguide Cavities Miniaturised Half-mode Substrate Integrated Waveguide Cavities Noise Figure 0.8 DB Noise Figure 1.6 DB Noise Figure 45.0 DB Passband Differential-mode Insertion Loss Substrate Integrated Waveguide Two-pole Half-mode Balanced SIWC BPFs Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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