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An X-band waveguide bandpass filter with enhanced stopband using offset resonators

Hao Liu, Fan Zhang, Cheng Guo, Bing Xue, Jun Xu
2020 IEICE Electronics Express  
This letter presents a narrowband third-order waveguide bandpass filter (BPF) with extended out-of-band response.  ...  The filter is composed of three offset resonators, and each resonator is constructed by shifting half of a rectangular resonator, featuring a very large distance between the first and second resonant frequencies  ...  Conclusion An X-band third-order waveguide BPF with enhanced stopband based on offset resonators was presented in this letter. The design principles of the offset resonator and filter were presented.  ... 
doi:10.1587/elex.17.20200406 fatcat:ffs2btpfkrg2hka2itxjxbr4vy

A monolithic programmable optical filter for RF-signal processing

Erik J. Norberg, Robert S. Guzzon, John S. Parker, Leif A. Johansson, Larry A. Coldren
2010 2010 IEEE International Topical Meeting on Microwave Photonics  
Bandpass filters have a passband tunable in bandwidth (3-14GHz) and center frequency (0-40GHz). Cascaded filter sections have stopband rejection exceeding 35dB. I.  ...  A monolithic programmable optical filter suitable for dynamic pre-filtering of wide bandwidth RF signal-bands is presented.  ...  With four poles, a 2 nd order bandpass filter was cascaded twice, enhancing filter roll off and stopband rejection to almost 40 dB.  ... 
doi:10.1109/mwp.2010.5664120 fatcat:233utqozbbfpdfnrzxdkon3akm

A NOVEL DUAL-BAND SIW FILTER WITH HIGH SELECTIVITY

Yu-Dan Wu, Guo-Hui Li, Wei Yang, Tong Mou
2016 Progress In Electromagnetics Research Letters  
Dual-band bandpass filter is an indispensable component for multi-band systems since it can be used as two separate single bandpass filters. So far, several ways have been used to acquire dual-band.  ...  A novel dual-band substrate integrated waveguide (SIW) filter with multiple transmission zeros and good out-of-band rejection performance is presented in this paper.  ...  It is composed of an SIW square resonant cavity etching with two open loop resonators (OLRs). It is also used as a basic structure in this paper.  ... 
doi:10.2528/pierl16032401 fatcat:gc27uqx5vvbgxk4rhj72gzv7h4

Parallel-coupled line filters with enhanced stopband performances

W.M. Fathelbab, M.B. Steer
2005 IEEE transactions on microwave theory and techniques  
Index Terms-Capacitively loaded resonators, high-pass/bandpass filter prototypes, parallel-coupled line (PCL) filters, spurious stopband rejection, uniform/stepped-impedance resonators.  ...  A new class of parallel-coupled line filters with broad stopband response is introduced. The design is based on the synthesis of bandpass prototypes with pre-defined upper stopband characteristics.  ...  Parallel-Coupled Line Filters With Enhanced Index Terms-Capacitively loaded resonators, high-pass/bandpass filter prototypes, parallel-coupled line (PCL) filters, spurious stopband rejection, uniform/stepped-impedance  ... 
doi:10.1109/tmtt.2005.859871 fatcat:bessctukorb3jdsiyvmywag6yq

A LOW-PROFILE HALF-MODE SUBSTRATE INTEGRATED WAVEGUIDE FILTERING ANTENNA WITH HIGH FREQUENCY SELECTIVITY

Hai-Yan Wang, Gang Zhao, Rui-Yang Li, Yong-Chang Jiao
2021 Progress In Electromagnetics Research Letters  
A low-profile half-mode substrate integrated waveguide (HMSIW) filtering antenna with high frequency selectivity is proposed in this letter.  ...  The measured results illustrate that the proposed antenna provides an impedance bandwidth of 4.3% ranging from 2.74 to 2.86 GHz and a peak gain of 6.76 dBi during the operating frequency band.  ...  A second-order filtering antenna has been realized by using a SIW bandpass filtering circuit together with a printed antipodal linearly tapered slot antenna.  ... 
doi:10.2528/pierl21051206 fatcat:q3voe2l5vzfqzpxqz5x6dpxoju

2020 Index IEEE Microwave and Wireless Components Letters Vol. 30

2020 IEEE Microwave and Wireless Components Letters  
Inte- grated Waveguide Broadband Bandpass Filter With Wide Out-of-Band Rejection".  ...  ., +, LMWC Sept. 2020 865-868 Post-Loaded Substrate-Integrated Waveguide Bandpass Filter With Wide Upper Stopband and Reduced Electric Field Intensity.  ... 
doi:10.1109/lmwc.2021.3055080 fatcat:2yn4ofvchnggvjguzlz2kv3qyi

TUNABLE MULTIBAND BALANCED BANDSTOP FILTER WITH HIGH CMRR

Dubari Borah, Thottam S. Kalkur
2019 Progress In Electromagnetics Research C  
The fabricated prototype occupies an area of 0.31λ 2 g , and the experimental results show a good agreement with the simulation results.  ...  The lower and upper bands maintain a constant absolute bandwidth (ABW) of 115 MHz and 135 MHz, respectively, and stopband rejection is better than 20 dB for each band.  ...  If the frequency offsets are denoted by reactances X i , and the reactance of the short-circuited coupling (K 0s ) is X 0s , the mathematical expression for input impedance {Z INi } (i = 1, 2, ..., N )  ... 
doi:10.2528/pierc19041607 fatcat:vfoyvkfkkvfw3hkvtingpjicpq

Triple-Mode Cavity Bandpass Filter on Doublet With Controllable Transmission Zeros

Zai-Cheng Guo, Sai-Wai Wong, Jing-Yu Lin, Lei Zhu, Qing-Xin Chu, Qingfeng Zhang, Yang Yang
2017 IEEE Access  
On the basis of doublet and its properties, a class of multiple-mode narrow band bandpasss filter is designed and fabricated by simultaneously exploiting the three resonant modes in a single rectangular  ...  In order to verify the proposed theory, two filter prototypes are fabricated and measured. INDEX TERMS Doublet, triple-mode, rectangular cavity, bandpass filter, slots.  ...  Higher-order filters, including bandpass or bandstop filters with symmetric and asymmetric pseudo-elliptic responses, can be designed by properly cascading doublets with resonators [11] or non-resonators  ... 
doi:10.1109/access.2017.2696120 fatcat:uiwv672iuzhrzl22yd5cyapmve

Analysis and Applications of Uniplanar Compact Photonic Bandgap Structures

C. Chang, Y. Qian, T. Itoh
2003 Electromagnetic Waves  
suppress leakage in conductor-backed coplanar waveguide, to realize TEM waveguides, and to implement low-profile cavity-backed slot antennas.  ...  These planar periodic structures are particularly attractive and have been intensively investigated due to their easy fabrication, low cost, and compatibility with standard planar circuit technology.  ...  The slow-wave effect generated by the UC-PBG structure reduces resonator length in the construction of an edge-coupled bandpass filter.  ... 
doi:10.2528/pier02010809 fatcat:i5bw2gr5effspehcsdwg4lrlj4

Analysis and Applications of Uniplanar Compact Photonic Bandgap Structures

C. Chang, Y. Qian, T. Itoh
2003 Electromagnetic Waves  
suppress leakage in conductor-backed coplanar waveguide, to realize TEM waveguides, and to implement low-profile cavity-backed slot antennas.  ...  These planar periodic structures are particularly attractive and have been intensively investigated due to their easy fabrication, low cost, and compatibility with standard planar circuit technology.  ...  The slow-wave effect generated by the UC-PBG structure reduces resonator length in the construction of an edge-coupled bandpass filter.  ... 
doi:10.2528/pier02010890 fatcat:ld3dq5r7ajg7dhganneyknwnl4

2020 Index IEEE Transactions on Microwave Theory and Techniques Vol. 68

2020 IEEE transactions on microwave theory and techniques  
; 111-120 Jiang, J., see Cao, T., TMTT May 2020 1819-1829 Jiang, W., see Liao, X., TMTT Aug. 2020 3271-3277 Jiang, W., and Liu, J., Three Numerical Eigensolvers for 3-D Cavity Resonators Filled With  ...  Filters Using Microfluidic Reconfiguration With Integrated Actuation; 3756-3768 Gordebeke, G., see Gossye, M., TMTT July 2020 2485-2494 Gossye, M., Gordebeke, G., Kapusuz, K.Y., Ginste, D.V., and Rogier  ...  ., +, TMTT May 2020 1668-1677 Wide Stopband Substrate Integrated Waveguide Filter Implemented by Orthogonal Ports' Offset.  ... 
doi:10.1109/tmtt.2021.3049615 fatcat:kik4orti4je4xdsgazdbmdoopy

2021 Index IEEE Transactions on Microwave Theory and Techniques Vol. 69

2021 IEEE transactions on microwave theory and techniques  
., TMTT Jan. 2021 89-100 Triple-Band Bandpass Filter and Triplexer Using Quad-Ridge Cavity Resonators.  ...  ., +, TMTT Aug. 2021 3853-3860 Triple-Band Bandpass Filter and Triplexer Using Quad-Ridge Cavity Resonators.  ... 
doi:10.1109/tmtt.2022.3156771 fatcat:7iov55dzdnbprgd42epirpfaia

2019 Index IEEE Transactions on Microwave Theory and Techniques Vol. 67

2019 IEEE transactions on microwave theory and techniques  
April 2019 1412-1424 Differential Dual-Band Superconducting Bandpass Filter Using Multimode Square Ring Loaded Resonators With Controllable Bandwidths.  ...  ., +, TMTT April 2019 1452-1460 Differential Dual-Band Superconducting Bandpass Filter Using Multimode Square Ring Loaded Resonators With Controllable Bandwidths.  ...  Power demand Design of Reconfigurable dB-Linear Variable-Gain Amplifier and Switchable-Order g m -C Filter in 65-nm CMOS Technology. Liu  ... 
doi:10.1109/tmtt.2019.2953035 fatcat:hyq2vngaxrcqlggu7bzcbzdyba

Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement

Honggang Hao, Dexu Wang, Zhu Wang
2020 Sensors  
With the enhanced resonance characteristics of the sensor, this design realized the measurement of complex dielectric constants in a wide range.  ...  By loading three complementary resonant rings with different opening directions in the ground plane, a deeper notch and better out-of-band suppression are achieved.  ...  Those parameters can be extracted by an LC circuit with a model of a bandpass filter [26] [27] [28] . The calculated lumped parameters are presented in Table 1 .  ... 
doi:10.3390/s20030857 pmid:32041152 pmcid:PMC7038781 fatcat:qrd2uhk2offkdcnkhquflrubgq

Affiliation Index

2020 2020 IEEE/MTT-S International Microwave Symposium (IMS)  
X/Ku Dual-Band GaAs MMIC Power Amplifier Quasi-Absorptive Substrate-Integrated Bandpass Filters Using Capacitively-Loaded Coaxial Resonators Quasi-Elliptic Coupled-Line-Based Balanced Bandpass Filters  ...  Filter with Wide Stopband and Low Radiation Loss Using Substrate Integrated Defected Ground Structure C Novel Reconfigurable Filtering Crossover Based on Evanescent-Mode Cavity Resonators C  ... 
doi:10.1109/ims30576.2020.9223885 fatcat:r7efh7ktevgorc24r4l4vpf3nu
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