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New Dual Band Dual-Mode Microstrip Patch Bandpass Filter Designs Based on Sierpinski Fractal Geometry [article]

Jawad K. Ali
2020 Figshare  
The proposed filter designs are based on the use of dual mode square slotted patch micro strip resonator.  ...  Dual band dual mode chebychev micro strip band pass filter designs are introduced for first time in this paper.  ...  DUAL BAND DUAL MODE FILTER DESIGN From 0 th to 2 nd iteration dual-mode microstrip patch bandpass filter structures have been designed with dual narrow bands.  ... 
doi:10.6084/m9.figshare.11933577.v1 fatcat:m3ne2nb4nzex3j2kqm3inlhnka

A New Tunable Dual-mode Bandpass Filter Design Based on Fractally Slotted Microstrip Patch Resonator [article]

Jawad K. Ali
2020 Figshare  
A dual-mode slotted microstrip patch resonator is introduced in this paper for use in wireless communication applications.  ...  microstrip patch without slot.  ...  In this paper, a new dual mode slot microstrip square patch resonator bandpass filter is presented.  ... 
doi:10.6084/m9.figshare.11916681.v1 fatcat:4hn42kf6xzfy7coxch2gnvf6d4

Investigation of New Microstrip Bandpass Filter Based on Patch Resonator with Geometrical Fractal Slot

Yaqeen S. Mezaal, Halil T. Eyyuboglu, Goran Karapetrov
2016 PLoS ONE  
This filter has the benefits of possessing narrower and sharper frequency responses as compared to microstrip filters that use single mode resonators and traditional dual-mode square patch resonators.  ...  A compact dual-mode microstrip bandpass filter using geometrical slot is presented in this paper. The adopted geometrical slot is based on first iteration of Cantor square fractal curve.  ...  In this paper, dual degenerate mode microstrip slotted patch bandpass filter with narrow band responses and sufficient performances has been presented.  ... 
doi:10.1371/journal.pone.0152615 pmid:27054755 pmcid:PMC4824516 fatcat:tojc3hylwffhrh6baz54njqehy


Zhi-Xi Chen, Xi-Wang Dai, Chang-Hong Liang
2007 Electromagnetic Waves  
A dual-mode dual-band bandpass microstrip filter using double square-loop structure is proposed in this paper.  ...  Each of the square-loop forms a dual-mode resonator with controllable respective passband.  ...  Proposed dual-mode dual-band bandpass filter. Figure 4 . 4 Figure 4. Different frequency responses with variation of x. Figure 5 . 5 Figure 5.  ... 
doi:10.2528/pier07082803 fatcat:2msmrafdojai7cru7bgxmpffnm

Microstrip bandpass filter using degenerate modes of a novel meander loop resonator

J.S. Hong, M.J. Lancaster
1995 IEEE Microwave and Guided Wave Letters  
A novel type of dual-mode microstrip bandpass filter using degenerate modes of a meander loop resonator has been developed for miniaturization of high selectivity narrowband microwave bandpass filters.  ...  A filter of this type having a 2.5% bandwidth at 1.58 GHz was designed and fabricated. The measured filter performance is presented.  ...  The new filter structure has a smaller size as compared with the other dual-mode microstrip filters.  ... 
doi:10.1109/75.473539 fatcat:zdpzcupjmrcbdjrhlf6ws6otyy


Kenneth Siok Kiam Yeo, Augustine Onyenwe Nwajana
2013 Progress In Electromagnetics Research C  
Here, the dual-mode square patch resonator is employed to achieve a dualband bandpass filter. A 6 pole dual-band bandpass filter response with 3 poles at each passband will be presented.  ...  Dual-mode square patch resonator is well known in the design of a single band quasi-elliptic bandpass filter response.  ...  The microstrip dual-mode square patch resonator has been widely researched [6] [7] [8] [9] for designing a single band bandpass filter with quasielliptical response for high selectivity applications.  ... 
doi:10.2528/pierc12120312 fatcat:flmevdrywbbwbfroyzq52q4rgi

Design of Compact Dual-Mode BPFs Based on Cantor Fractal Geometry with U-Shaped Capacitive Coupling

2018 Engineering and Technology Journal  
Keywords-Microstrip filter, Cantor fractal resonator, dual-mode bandpass filter, single and dual band filter responses.  ...  This study displays two microstrip bandpass filters using dual mode loop and patch resonators in form of Cantor geometry.  ...  The output frequency results have wide passband with dual degenerate modes.  ... 
doi:10.30684/etj.36.4a.9 fatcat:is33emquuzabvkz4b6wgvphvce

Dual-Mode Dual-Band Microstrip Bandpass Filter Based on Fourth Iteration T-Square Fractal and Shorting Pin

E. S. Ahmed
2012 Radioengineering  
A new class of dual mode microstrip fractal resonator is proposed and developed for miniaturization of the dual band bandpass filter.  ...  The simulated response of the designed filter has two transmission bands, the first band is from 2.34-3.65 GHz with resonant frequencies at 2.47GHz and 3.55GHz, the second band is from 4.37-5.324GHz with  ...  Conclusion In this paper, a new dual-mode T-square fractal microstrip resonator is introduced as a well miniaturized dual-band bandpass filter.  ... 
doaj:186dd68ff0aa4beb89a02d9ceaf6d02b fatcat:gs7dukuouvc3lkfhyoe3whsy4y

Design of Fractal-Based Dual-Mode Microstrip Bandpass Filter for Wireless Communication Systems [chapter]

G. Abirami, S. Karthie
2018 International Conference on Computer Networks and Communication Technologies  
Dual mode microstrip multi-bandpass filter is proposed with tree fractal slot on a square patch resonator.  ...  A single square patch is used for realizing both dual and tri-bandpass filters exploiting the dominant, higher order and its corresponding degenerate resonant modes by the tree fractal iteration on the  ...  Various dual mode bandpass microstrip filters with orthogonal feeding and unequal diagonal cross slots acting as perturbation element for the patch, have been reported in [5] [6] [7] .  ... 
doi:10.1007/978-981-10-8681-6_48 fatcat:utrbdnlf7fcbxivuji4f6ufura

Theory and Experiment of Dual-Mode Microstrip Triangular Patch Resonators and Filters

J.-S. Hong, S. Li
2004 IEEE transactions on microwave theory and techniques  
In this paper, we report on the results of an investigation into dual-mode operation of microstrip triangular patch resonators and their applications for designing dual-mode bandpass filters.  ...  The applications of this new type of dual-mode microstrip patch resonator in the design of microwave planar filter are presented. A circuit model for operation of this type of filter is proposed.  ...  In general, microstrip bandpass filters may be designed using single-or dual-mode resonators.  ... 
doi:10.1109/tmtt.2004.825653 fatcat:ekt6xkezmfg75oaa7z5e5u2dfq

A compact dual-band bandpass filter using microstrip meander loop and square loop resonators

Sholeh Jahani Maleki, Massoud Dousti
2012 IEICE Electronics Express  
A compact dual-band bandpass filter using loop resonators is proposed in this paper. The filter is designed for resonance frequencies of 1.8 GHz and 2.4 GHz.  ...  This filter has achieved excellent scattering parameters and size reduction of approximately 30% compared to conventional microstrip filters.  ...  A compact dual-band bandpass filter using microstrip loop resonators with square patches is presented in this paper.  ... 
doi:10.1587/elex.9.1342 fatcat:yjk4njay4vg4lcr2sljfjdljt4


Eugene Ogbodo, Yi Wang, Predrag B. Rapajic
2015 Progress In Electromagnetics Research C  
Instead a mixture of single-mode hairpin resonators and dual-mode patch resonators have been adopted in a bandpass filter with one asymmetric transmission zero.  ...  The introduction of the patch led to an improved frequency selectivity through an independently controllable transmission zero.  ...  DESIGN Hairpin Three-Pole Bandpass Filter The microstrip bandpass filter with mixed hairpin and patch resonators has been proposed to have the following specifications: • Centre frequency of f 0, 2.6GHz  ... 
doi:10.2528/pierc15072905 fatcat:fjwpuuzgrjcl7ks3gfyzyrlmnq

Investigation of new nondegenerate dual-mode microstrip patch filter

A.F. Sheta, N. Dib, A. Mohra
2006 IEE Proceedings - Microwaves Antennas and Propagation  
A new nondegenerate dual-mode microstrip patch filter structure is introduced. The proposed filter is based on a square microstrip patch with four slots etched in symmetrical form.  ...  Design curves that relate the mode resonance frequencies and fractional bandwidth against slot parameters are presented. A bandpass filter is designed, analysed and tested at 2.15 GHz.  ...  In this paper, a dual-mode square-patch resonator, with four slots etched in symmetrical shape, is proposed for small-size and low-loss bandpass filter applications.  ... 
doi:10.1049/ip-map:20050103 fatcat:d6uz65s7i5fntig773incvcwmm

Highly Selective Dual-Mode Microstrip Bandpass Filters Using Triangular Patch Resonators

K.G. Avinash, I. S. Rao
2017 Advanced Electromagnetics  
In this paper, highly selective dual-mode microstrip bandpass filters are proposed using horizontal and vertical slots formed on the surface of a triangular patch.  ...  Slots are responsible for splitting and coupling of dual degenerate modes and also facilitate in controlling their resonant frequencies by varying the dimensions of the slots.  ...  Introduction Microstrip filters with asymmetric frequency response on either side of the passband are needed in modern mobile and wireless communication systems.  ... 
doi:10.7716/aem.v6i1.469 fatcat:de2lfwgswzhnnnkbgcojp6ktey


Li-Peng Zhao, Xi-Wang Dai, Zhi-Xi Chen, Chang-Hong Liang
2007 Electromagnetic Waves  
A novel dual-mode dual-band bandpass filter based on conventional triangular dual-mode filter is designed in this paper.  ...  Several attenuation poles in the stopband are realized to improve the selectivity of the proposed bandpass filter. The experimented results were in good agreement with simulated results.  ...  Fig. 1 shows the conventional design of dual-mode bandpass filter, different filter responses can be obtained with different positions and sizes of the perturbation, which is analyzed in detail in [  ... 
doi:10.2528/pier07090501 fatcat:qlmf5sw34rhd7cjwqqcqbni2oe
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