NDLI: Compact CHMSIW filters with TZs

Content Provider	IET Digital Library
Author	Huang, Liwen Cha, Hao
Abstract	Novel capacitively loaded half-mode substrate integrated waveguide (CHMSIW) filters with transmission zeros (TZs) are presented in this study. The CHMSIW is proposed by embedding a metallic stripline and inductive post in the HMSIW, which introduces a series inductor-capacitor (LC) branch circuit in waveguide thereby generating TZ above the passband. Furthermore, as the embedded stripline introduces additional capacitance, a significant size reduction can be achieved for the CHMSIW in comparison with conventional HMSIW. Two types of CHMSIW resonator topologies are developed by varying the number of LC branches, with multiple TZs achieved by inserting multiple LC branches in waveguide. On the basis of the CHMSIW resonators, compact bandpass filters are designed and fabricated, where TZs are obtained in the upper stopband and a sharp transition is achieved from the passband to the stopband. To further improve the selectivity, mixed coupling is introduced in CHMSIW filters to generate additional TZs in the lower stopband. A prototype of the mixed-coupled CHMSIW filter is designed and tested, and high selectivity as well as compact size and good out-of-band rejection have been achieved for the proposed mixed-coupled CHMSIW filter.
Starting Page	354
Ending Page	362
Page Count	9
ISSN	17518725
Volume Number	11
e-ISSN	17518733
Issue Number	Issue 3, Feb (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/11/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0405
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2016-09-22
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band-pass Filter Band-stop Filter Capacitively Loaded Half-mode Substrate Integrated Waveguide Filter CHMSIW Resonator Topology Compact Bandpass Filter Embedded Stripline Inductive Post Metallic Stripline Mixed-coupled Filter Multiple TZ Passive Filter Passive Network Resonator Filter Series LC Branch Circuit Stopband Filter Strip Line Filter Substrate Integrated Waveguide Transmission Zero Waveguide And Microwave Transmission Line Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Suspended stripline bandpass filter using HTLSIR with controllable Tz

Compact bandpass filter with improved upper stopband

Compact dual-mode dual-band HMSIW bandpass filters using source–load coupling with multiple transmission zeros

Compact wide-stopband SIW dual-band filter with closely spaced passbands

Sixteenth-mode substrate integrated waveguide bandpass filter loaded with complementary split-ring resonator

Compact lowpass filter with wide stopband using stepped impedance hairpin units

Substrate integrated waveguide resonator with harmonic suppression

Compact customisable bandstop-bandpass-bandstop cascaded filter based on substrate integrated waveguide coax cavities

Compact bandpass filter based on one-third equilateral triangular resonator of substrate integrated waveguide

Compact CHMSIW filters with TZs

Similar Documents

Suspended stripline bandpass filter using HTLSIR with controllable Tz

Compact bandpass filter with improved upper stopband

Compact dual-mode dual-band HMSIW bandpass filters using source–load coupling with multiple transmission zeros

Compact wide-stopband SIW dual-band filter with closely spaced passbands

Sixteenth-mode substrate integrated waveguide bandpass filter loaded with complementary split-ring resonator

Compact lowpass filter with wide stopband using stepped impedance hairpin units

Substrate integrated waveguide resonator with harmonic suppression

Compact customisable bandstop-bandpass-bandstop cascaded filter based on substrate integrated waveguide coax cavities

Compact bandpass filter based on one-third equilateral triangular resonator of substrate integrated waveguide

Compact CHMSIW filters with TZs