scholarly journals Broadband Eight-Way Substrate Integrated Waveguide Radial Power Divider/Combiner With High-Isolation

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 69268-69272 ◽  
Author(s):  
Kaijun Song ◽  
Yuxuan Chen ◽  
Te Kong ◽  
Yong Fan
Keyword(s):  
Power Divider ◽  
Substrate Integrated Waveguide ◽  
High Isolation

A half‐mode substrate integrated waveguide filtering power divider with Fourier‐varying via holes

2021 ◽  
Author(s):  
Osama Hussein ◽  
Khair Al Shamaileh ◽  
Hjalti Sigmarsson ◽  
Said Abushamleh ◽  
Nafati Aboserwal ◽  
...  
Keyword(s):  
Power Divider ◽  
Substrate Integrated Waveguide ◽  
Via Holes

scholarly journals H-Plane Waveguide In-Phase Power Divider/Combiner With High Isolation Over the WR-3 Band

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 22232-22238
Author(s):  
Jie Wang ◽  
Yun Zhao ◽  
Jiang-Qiao Ding
Keyword(s):  
Power Divider ◽  
Plane Waveguide ◽  
High Isolation

Compact bandpass-filtering response power divider with high-frequency selectivity and high isolation

2019 ◽  
Vol 11 (08) ◽  
pp. 755-760
Author(s):  
Jiawei Li ◽  
Kaijun Song ◽  
Fei Xia ◽  
Shema Richard Patience ◽  
Song Guo ◽  
...  
Keyword(s):  
Slow Wave ◽  
High Frequency ◽  
Reasonable Agreement ◽  
Frequency Selectivity ◽  
Power Divider ◽  
Dual Mode ◽  
High Isolation ◽  
Wave Characteristics ◽  
Capacitive Load

AbstractA compact high-isolation power divider with bandpass response and high-frequency selectivity is presented in this letter. Two dual-mode resonators are used to realize filtering response. The circuit size of the proposed power divider can be reduced by using dual-mode capacitance loaded square meander loop resonators. Due to capacitive load, the resonator can exhibit slow-wave characteristics, which can be utilized to suppress harmonics and reduce size. The simulated and measured results show reasonable agreement.

Design and Analysis of Integrated Wilkinson Power Divider-Fed Conformal High-Gain UWB Array Antenna with Band Rejection Characteristics for WLAN Applications

2020 ◽  
pp. 2150133
Author(s):  
Soufian Lakrit ◽  
Hicham Medkour ◽  
Sudipta Das ◽  
B. T. P. Madhav ◽  
Wael A. E. Ali ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Local Area Network ◽  
Ultra Wideband ◽  
Bending Test ◽  
Power Divider ◽  
Area Network ◽  
Curved Surfaces ◽  
Uwb Antenna ◽  
High Isolation ◽  
Wilkinson Power Divider

Flexible ultra-wideband (UWB) antenna arrays with band notching characteristics are proposed in this work. A new wideband and high-isolation Wilkinson power divider (WPD) is designed to construct the feed systems of the UWB antenna arrays. The proposed WPD is achieved by introducing a significant modification to the conventional WPD and the new one is composed of four isolation stages. Multiple stages helped to achieve wideband from 2[Formula: see text]GHz to more than 12[Formula: see text]GHz with high isolation characteristics of more than 20[Formula: see text]dB and insertion losses around 3.3[Formula: see text]dB. The designed WPD is then applied to feed two UWB monopole antenna arrays which offer a notched band centered at 5.5[Formula: see text]GHz to reject interference from wireless local area network (WLAN) system and can be integrated with curved surfaces. To verify the performance of the proposed structure, two array configurations are practically fabricated and measured. The results show that both the arrays have UWB operational bandwidth (3.5–11.8[Formula: see text]GHz for [Formula: see text] array and 3.6–12[Formula: see text]GHz for [Formula: see text] array) that includes the UWB spectrum. Attractive agreement between simulation and measurement results is obtained. Furthermore, the bending test is carried out on the [Formula: see text] array showing the good performance of the proposed system when installed on curved surfaces for different bent angles.

A compact, broadband three-way substrate integrated waveguide power divider with improved isolation

Circuit World ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Arun Kumar Gande ◽  
Souma Guha Mallick ◽  
Bijit Biswas ◽  
Sayan Chatterjee ◽  
Dipak Ranjan Poddar
Keyword(s):  
Return Loss ◽  
Power Divider ◽  
Substrate Integrated Waveguide ◽  
Fractional Bandwidth ◽  
Coupling Region ◽  
Content Type ◽  
Power Dividers ◽  
Power Coupling ◽  
Input And Output ◽  
Input Matching

Purpose This paper aims to present a compact, broadband substrate integrated waveguide (SIW) three-way power divider with improved isolation based on six-port SIW coupler. Design/methodology/approach The power coupling among the three output ports occurs due to short openings in the narrow walls of the central SIW channel. Performance improvement in the isolation and return loss among ports is achieved using matching posts placed at the input and output ends of the coupling region. This enhances the coupling between TE10 and TE30 modes. The input matching ports enhance the return loss, whereas the isolation is alleviated by both the input and output matching posts. The bandwidth enhancement is achieved by optimizing the outer SIW channel widths. Findings The measured fractional bandwidth of 27.3% with over 15 dB of isolation and return loss is achieved. The coupling length is 1.55 λg at the centre frequency. The power divider achieves better than 15 dB isolation between non-adjacent output ports. The measured reflection and isolation coefficients are in close agreement with simulated results over 8.2 to 10.8 GHz. Practical implications Isolation between the adjacent and non-adjacent ports is an important parameter as the reflections from these ports will interfere with signals from other ports reducing the fractional bandwidth of the power divider and affecting the overall performance of the transmitters and receivers. Originality/value The authors present the enhancement of isolation between the output non-adjacent ports by optimizing the SIW channel width and matching post in the coupling region to reduce the reflected signals from non-adjacent ports entering into other ports. To the author’s knowledge, this is the only SIW three-way power divider paper showing non-adjacent port isolation among six-port couplers based three-way power dividers.

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