Compact microstrip diplexer using triple-mode stub loaded resonators

Choocadee, Sarun; Intarawiset, Nattapong; Tantiviwat, Sugchai

doi:10.1109/icmim.2017.7918843

Cited by 4 publications

(4 citation statements)

References 13 publications

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“…The most technique used to compact the microstrip diplexer is to select proper resonators to reduce the circuit size since resonators are basic components of a filter. Thus, tri-mode stub-loaded resonator [10] and slotline stepped impedance resonator [11] have been used in diplexer configuration. Microstrip diplexers using TM 010 circular cavity [12], folded open-loop ring resonators [13], stepped impedance resonators [14], and ring resonator [15] have also been designed to reduce the circuit area of the diplexer, but the aforementioned diplexers still have the disadvantage of large circuit area.…”

Section: Introductionmentioning

confidence: 99%

Compact Microstrip Diplexer Based on Dual Closed Loop Stepped Impedance Resonator

Dembele¹,

Bao²,

Zhang³

et al. 2019

PIER C

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A compact microstrip diplexer based on dual closed loop stepped impedance resonator (DCLSIR) is proposed. The proposed microstrip diplexer is composed of the combination of two DCLSIR bandpass filters (BPFs), which are designed for X-band application. For the demonstration, a dual-channel diplexer has been designed and fabricated using microstrip and printed circuit board (PCB) technologies, respectively. The fabricated diplexer, operating at 8.3/10 GHz for X-band application, has compact size (15.17 mm × 2.69 mm). The measured results are in good agreement with the full-wave simulation results. Good isolation between two channels is achieved.

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Section: Introductionmentioning

confidence: 99%

Compact Microstrip Diplexer Based on Dual Closed Loop Stepped Impedance Resonator

Dembele¹,

Bao²,

Zhang³

et al. 2019

PIER C

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“…In Ref. , a triple mode SLR was used but only for a diplexer design. Asymmetric stub‐loaded resonators have been used in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…The combined open and short SLRs had been presented in Refs. for a triple mode resonator in filters, diplexers and power dividers. The stubs were used to control the second and third resonant frequencies.…”

Section: Introductionmentioning

confidence: 99%

Microstrip triplexer using a common triple‐mode resonator

Eltokhy

Wang

2018

Micro & Optical Tech Letters

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GHz are obtained, respectively, in the simulation and measured responses. | C ONCL US I ONSThe third and fifth order microstrip LPFs are designed with folded line in place of high-impedance line. In addition to the reduction in overall size of filter by near about 10%, our simulated results have shown no effect on the cutoff frequency of filters with folded high-impedance line in comparison to the conventional LPF. Among the salient features, the lower insertion loss in pass band, higher sharp cutoff rate and higher attenuation in the stop band are obtained with the proposed LPF design. Results of fifth order simulated and measured LPF are found in good agreement. In future, these features can be further improved by utilizing 'C', 'X', or 'S' shaped folded line in addition to size reduction. ACKNOWLEDGMENTSThe authors thank the Research and Development Scheme 2015-2016 of the University of Delhi for the financial support and carrying out the present work. ORCID Kamlesh PatelAbstract An all-resonator based triplexer is presented using a double-stub-loaded resonator (DSLR) that acts as a F IGUR E 6 Comparison of simulated and measured responses: A, S 11 (dB), B, S 21 (dB) [Color figure can be viewed at wileyonlinelibrary. com] EL-TOKHY ET AL. | 1815 F IGUR E 6 Triplexer measurement versus simulation. (A) Transmission, (B) reflection, and (C) isolation between the three output ports [Color figure can be viewed at wileyonlinelibrary.com]

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“…The diplexer is commonly constructed by two microwave bandpass filters with common T‐shaped resonator [1] to achieve the desired isolation. Many kinds of diplexers have been implemented using the T‐junction and resonator‐based bandpass filters such as defected ground slotline structure [2], slotline loaded ring structure [3], multimode patch structure [4] and mixed electromagnetic coupling structure [5] etc . However, in many designs, transmission zero (TZ) especially multiple TZs are not easy to be achieved.…”

Section: Introductionmentioning

confidence: 99%

High selective microstrip bandpass filter and diplexer with common magnetic coupling

Xiao

Zhang

2018

Electron. lett.

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A new common magnetic coupling structure has been proposed. A high selective microstrip bandpass filter and a diplexer with the common magnetic coupling and 0°feeding have been developed. A pair of transmission zeros can be generated by 0°feeding, while an additional transmission zero can be produced by the common magnetic coupling structure and can be controlled/adjusted by the electric/magnetic couplings. The proposed diplexer has been fabricated and measured, and the measurement shows a channel insertion loss of <1.3 dB, and an isolation of not <34 dB. The measured results agree with the prediction.

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Compact microstrip diplexer using triple-mode stub loaded resonators

Cited by 4 publications

References 13 publications

Compact Microstrip Diplexer Based on Dual Closed Loop Stepped Impedance Resonator

Compact Microstrip Diplexer Based on Dual Closed Loop Stepped Impedance Resonator

Microstrip triplexer using a common triple‐mode resonator

High selective microstrip bandpass filter and diplexer with common magnetic coupling

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