Compact Band-Pass Filters Based on Parallel-Coupled Lines with Open Stubs
Sign Up to like & getrecommendations! Published in 2018 at "Wireless Personal Communications"
DOI: 10.1007/s11277-018-5337-x
Abstract: Abstract In this paper, two parallel coupled line band-pass filters are proposed. The proposed parallel coupled line band-pass filters are composed of the parallel coupled lines and open stubs. The equivalent circuit of the proposed… read more here.
Keywords: band pass; pass filters; coupled line; parallel coupled ... See more keywords
A class of coupled-line trans-directional coupler with independent or simultaneous tuned frequency, coupling coefficient and phase difference
Sign Up to like & getrecommendations! Published in 2020 at "AEU - International Journal of Electronics and Communications"
DOI: 10.1016/j.aeue.2020.153200
Abstract: Abstract The paper reports on the design of coupled-line trans-directional (CL-TRD) coupler with independent or simultaneous tuned frequency, coupling coefficient and phase difference (PD). Based on the proposed structure, four kinds of couplers are exhibited,… read more here.
Keywords: phase; frequency; coupled line; tuned coupler ... See more keywords
Broadband coupled-line directional couplers with high impedance transformation ratio
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Microwave and Wireless Technologies"
DOI: 10.1017/s1759078717000113
Abstract: A new class of 3-dB impedance transforming directional couplers has been proposed in which the recently published coupled-line couplers, consisting of coupled-line sections having different electrical lengths, have been utilized. The main advantage of the… read more here.
Keywords: directional couplers; coupled line; impedance transformation; impedance ... See more keywords
Design of the quasi-0 dB backward wave-coupled line coupler using CRLH-TL based on stepped-impedance open stub-loaded dual-mode resonator
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Electromagnetic Waves and Applications"
DOI: 10.1080/09205071.2020.1758221
Abstract: ABSTRACT This paper demonstrates symmetric backward wave quasi-0 dB coupled line coupler (CLC) based on the globe shaped composite right/left-handed transmission line (GS-CRLH-TL). The proposed CLC shows quasi-0 dB backward wave coupling with measured maximum… read more here.
Keywords: backward wave; line coupler; coupled line; quasi backward ... See more keywords
Broadband Equal-Split Directional Couplers Composed of Cascade- and Tandem-Connected Coupled-Line Sections Having Unequal Lengths
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DOI: 10.1109/access.2021.3106901
Abstract: A new concept of broadband equal-split coupled-line directional couplers is proposed. The proposed couplers are based on coupled-line sections, all having the same coupling coefficient, and feature frequency characteristics similar to the ones obtained for… read more here.
Keywords: broadband equal; line sections; line; directional couplers ... See more keywords
Miniaturized Frequency Controllable Band-Stop Filter Using Coupled-Line Stub-Loaded Shorted SIR for Tri-Band Application
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2017.2711532
Abstract: Based on the coupled-line stub-loaded shorted stepped-impedance resonator (CLSLSSIR), a compact microstrip tri-band band-stop filter (TB-BSF) with controllable frequencies, stopband attenuations (SAs), and sharp transition band roll-off skirts has been presented. The proposed CLSLSSIR exhibits… read more here.
Keywords: line; stub loaded; band; coupled line ... See more keywords
Wideband Three-Section Symmetrical Coupled-Line Directional Coupler Operating in Differential Mode
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2018.2824565
Abstract: In this letter, a concept of wideband multisection symmetrical coupled-line directional couplers operating in a differential mode has been presented for the first time. The required different coupling coefficients for each of the coupled-line sections… read more here.
Keywords: line directional; differential mode; line; operating differential ... See more keywords
Wiggly Parallel-Coupled Line Design by Using Multiobjective Evolutionay Algorithm
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2018.2848475
Abstract: This letter proposes a new optimization technique for wiggly parallel-coupled line (PCL) structure design. Compared with other existing wiggly PCL design approach, our proposed technique does not require complicated math formula derivation and is able… read more here.
Keywords: parallel coupled; coupled line; wiggly parallel; line design ... See more keywords
A D-band SiGe Power Amplifier Using a 4-way Coupled Line Wilkinson Combiner
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2021.3097017
Abstract: This paper presents a 4-way power-combined D-band SiGe power amplifier (PA) which simultaneously achieves high output power and high efficiency. A 4-to-1 planar coupled-line Wilkinson combiner is used, which has low loss and provides broadband… read more here.
Keywords: sige power; band sige; power; power amplifier ... See more keywords
A Coupled Line-Based Coupler With Simultaneously Tunable Phase and Frequency
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DOI: 10.1109/tcsi.2019.2939931
Abstract: The tunability in phase characteristics becomes more and more important in the modern wireless communication system. However, the existing phase tunable coupler structures suffer from the narrow bandwidth and limited tunable range due to the… read more here.
Keywords: operating frequency; phase; coupled line; coupler ... See more keywords
Single-/Dual-BPF Using Coupled-Line Stepped Impedance Resonators (CLSIR)
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2018.2889846
Abstract: This brief presents a new coupled-line stepped impedance resonator to design single-/dual-bandpass filters (BPFs). To verify the validity of the design concept a single-band filter with central frequency at 5.2 GHz and a dual-BPF with… read more here.
Keywords: single dual; coupled line; stepped impedance; line stepped ... See more keywords