Design of wideband six-port network formed by in-phase and quadrature Wilkinson dividers

Ibrahim, Siti Zuraidah; Abbosh, Amin; Bialkowski, M.E.

doi:10.1049/iet-map.2011.0539

Cited by 14 publications

(14 citation statements)

References 15 publications

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“…In modern communication and radar systems, a differential phase shifter has been extensively integrated into phased-array antennas [1], beamforming networks [2] to digitally control the beam direction and into antenna feeding networks [3] to realise the circular polarisation. Many research studies have been reported on the development of a variety of differential phase shifters [4][5][6][7][8][9][10][11][12][13][14][15] with the wideband property, small phase deviation, low amplitude imbalance and reasonable process cost.…”

Section: Introductionmentioning

confidence: 99%

“…Also, then, the double, cascaded and parallel coupled-line structures were proposed and used to further widen the desired bandwidth of operation [5]. To achieve extremely tight coupling degree as required in the wideband differential phase shifter, the modified ground [6] and multilayer broadside coupling structures [7] were developed. Besides, the stub-loaded technique was employed to increase their phase shift ranges [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis design of filtering wideband differential phase shifters on multimode resonators with controllable same insertion loss bandwidth

Lyu

Cheng

2017

IET Microwaves, Antennas & Propagation

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A new class of wideband differential phase shifters employing two distinctive multimode resonators both in main and reference lines is presented. Compared with their counterparts, the proposed phase shifter firstly can achieve wideband phase shift and good filtering function with controllable same insertion loss (IL) bandwidth in main and reference lines as required. To design two phase‐shifting elements with design indices (phase‐shift value, return loss, and operating bandwidth), an effective synthesis method is presented and sets of design curves are graphically demonstrated. Prototype phase shifters are then fabricated and measured. Finally, the design approach is validated experimentally. It is shown that the proposed phase shifters achieve 90° ± 2.3° and 45° ± 2.0° over the prescribed band 2.26–3.72 GHz (48%) and 2.04–4.03 GHz (66%). The good frequency selectivity with the same IL bandwidth is obtained and out‐of‐band rejection is >30.2 and 26.4 dB up to 7.0 GHz.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis design of filtering wideband differential phase shifters on multimode resonators with controllable same insertion loss bandwidth

Lyu

Cheng

2017

IET Microwaves, Antennas & Propagation

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“…Therefore, to solve the problems, Ibrahim et. al proposed a wideband six-port network formed by in-phase and quadrature Wilkinson dividers, which is designed by using a single layer board [7]. In this proposed design, the 90° phase shifters are added to one output port of Wilkinson divider.…”

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confidence: 99%

“…However, this six-port network can only cover the frequency range from 3 to 8 GHz. The authors are grateful to Ministry of Higher Education Malaysia (MOHE) and Universiti Teknologi Malaysia (UTM) for the financial assistance via Fundamental Research Grant Scheme (FRGS) with Vote Number of 4F206.Thus, to overcome the limitation in previous designs [1,4,7], a new design of compact UWB six-port network by using ground-slotted technique is proposed in this paper. This new design is formed by two 90° dividers and four in-phase two-section power dividers.…”

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The design of ultra wideband six-port network by using ground-slotted technique

Yusof

Seman

Jamaluddin

et al. 2014

2014 20th International Conference on Microwaves, Radar and Wireless Communications (MIKON)

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A new design of compact ultra wideband (UWB) six-port network by using ground-slotted technique is presented in this paper. The proposed six-port network is accomplished by constructing four in-phase two-section power dividers and two 90· power dividers by using CST Microwave Studio 2010. The presented result shows that the proposed UWB six-port network offers good amplitude and phase characteristic performances for frequency range of3.1 to 10.6 GHz.Index Terms-ground-slotted; power divider, six-port network; ultrawideband;LINTRODUCTION Six-port network is a passive linear circuit, which can be constructed by combining the coupler, power divider and/or H hybrid. It can be used to obtain the information such as complex reflection coefficient and impedance of a device under test (DUT) [1]. All this information can be obtained by using the amplitude measurements at the output ports where no phase measurements are required [2]. Detectors such as diode, thermistor or bolometer are used to terminate the ports to obtain the amplitude information [3].Recently, few techniques have been proposed in order to produce a six-port network that can operate in ultra wideband operating frequency range. One of the techniques is by using multilayer microstrip-slot technique formed by three couplers (Q) and one power divider (D) [1,4]. The device consists of four output ports connected to four scalar power detectors while one port is match terminated. This device can be used to measure the ratio of two complex signals entering its two input ports at Port 1 and 2. The performance of the device is excellent, where the whole ultra wideband frequency range is covered. However, the fabrication process is facing the challenges of misalignment [5] and air gap [6] problems. Therefore, to solve the problems, Ibrahim et. al proposed a wideband six-port network formed by in-phase and quadrature Wilkinson dividers, which is designed by using a single layer board [7]. In this proposed design, the 90° phase shifters are added to one output port of Wilkinson divider. This is to create a 90° phase difference between its two output ports. In addition, one terminated load has been eliminated in order to reduce the errors on the conventional six-port network. However, this six-port network can only cover the frequency range from 3 to 8 GHz. The authors are grateful to Ministry of Higher Education Malaysia (MOHE) and Universiti Teknologi Malaysia (UTM) for the financial assistance via Fundamental Research Grant Scheme (FRGS) with Vote Number of 4F206.Thus, to overcome the limitation in previous designs [1,4,7], a new design of compact UWB six-port network by using ground-slotted technique is proposed in this paper. This new design is formed by two 90° dividers and four in-phase two-section power dividers. Each of the components is implementing ground-slotted technique in order to achieve UWB frequency range. The proposed design is simulated by using CST Microwave Studio. The result obtained shows that good performances of amplitude and phase performance...

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Ultra-Wideband Six-Port Network Miniaturization—Matching

Empliouk,

Bantavis,

Koltsidas

et al. 2023

Int. J. Microw. Wireless Technol.

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In this paper, a new design approach for the six-port (SP) junction is introduced. The proposed design includes a generalized broadband matching and smooth miniaturization scheme and is extendable for any passive multiport structure. A multilayer technology and a microstrip to slot coupling operation are employed for the designed SP, which comprises power divider and three hybrid couplers. The conducted measurements of the constructed SP junctions validates the design approach. Optimal performance of the SP network in terms of miniaturization, bandwidth, and response accuracy were obtained for the 5G low band.

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Design of wideband six-port network formed by in-phase and quadrature Wilkinson dividers

Cited by 14 publications

References 15 publications

Synthesis design of filtering wideband differential phase shifters on multimode resonators with controllable same insertion loss bandwidth

Synthesis design of filtering wideband differential phase shifters on multimode resonators with controllable same insertion loss bandwidth

The design of ultra wideband six-port network by using ground-slotted technique

Ultra-Wideband Six-Port Network Miniaturization—Matching

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