Compact Beam-Scanning Flat Array Based on Substrate-Integrated Waveguide

Qiu, Houtong; Yang, Xue‐Xia; Yu, Yingjie; Lou, Tian; Yin, Zhangfei; Gao, Steven

doi:10.1109/tap.2019.2943441

Cited by 26 publications

(17 citation statements)

References 13 publications

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“…e active impedance of the stub array is matched by a step with a height of h s . In [28], the influences of each parameter of the stub on the stub's radiation ratio are given. e radiation ratio of the stubs is directly proportional to w and inversely proportional to h wg .…”

Section: Design Of the Stubmentioning

confidence: 99%

A Low-Sidelobe-Level Variable Inclination Continuous Transverse Stub Antenna with a Nonlinear Slow-Wave Structure

Wang

Lei

Gao

et al. 2021

International Journal of Antennas and Propagation

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The sidelobe level (SLL) is an essential performance factor for satellite communication antennas. A low-SLL design can effectively suppress adjacent satellite interference. A low-SLL design method for a variable inclination continuous transverse stub (VICTS) antenna is proposed in this paper. The VICTS antenna is composed of three rotatable parts: a feeding plate, a radiation plate, and a polarization plate. The radiation plate comprises two groups of stubs with different radiation ratios. Combined with the nonlinear slow-wave structure attached to the feeding plate, the radiation ratio of the unit can be adjusted. The aperture field of the VICTS antenna using this method can be tapered in order to suppress the SLL. To verify the effectiveness of this method, the antenna prototype is fabricated and measured in a microwave anechoic chamber. The simulation and the measurement are in good agreement. The reflection coefficient of the antenna is kept below −15 dB and between 13.75 GHz and 14.5 GHz. When the radiation plate and the feeding plate rotate relative to each other, the pattern beam can be scanned from 5° to 70 ° . In the scanning range, the typical SLL can reach −18 dB.

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Section: Design Of the Stubmentioning

confidence: 99%

A Low-Sidelobe-Level Variable Inclination Continuous Transverse Stub Antenna with a Nonlinear Slow-Wave Structure

Wang

Lei

Gao

et al. 2021

International Journal of Antennas and Propagation

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“…The 5G (fifth-generation) communication in mmWave band is essentially the directional communication that requires mmWave array antenna with scanning functionalities, low profile, and compacted high-density interconnection (HDI) integration. [1][2][3][4] Hence, patch array antennas with multilayer configuration, which are compatible to integrate active components in HDI, are preferred in mmWave technologies, such as in Antenna-in-Package (AiP) module. [5][6][7] Some new fabrication techniques such as advanced laser micromachining, 8 laser-induced graphene with metal coating have been studied.…”

Section: Introductionmentioning

confidence: 99%

“…11,12 In addition, the substrate integrated coaxial line (SICL) structure have been built and applied to filters, [13][14][15][16][17] Baluns 18 for shielding, to waveguide [19][20][21] for transition among different kinds of waveguides, and to antennas for suppressing mutual coupling. 3,22,23 Relative circuit models concerning via capacitances, 24,25 multilayer printed circuit boards (PCBs) 26,27 have been analyzed. Crosstalk among vias in multilayer PCBs has been investigated as well.…”

Section: Introductionmentioning

confidence: 99%

“…One possible method is to build structures to guide waves in specific paths, such as substrate integrated waveguide (SIW) that mimics classical rectangular waveguide in substrates to realize a compact high gain with better isolation among ports, 9,10 or the full‐metal cavity‐backed slot antennas (CBSAs) that can achieve high efficiency and high gain since they have no dielectric loss 11,12 . In addition, the substrate integrated coaxial line (SICL) structure have been built and applied to filters, 13–17 Baluns 18 for shielding, to waveguide 19–21 for transition among different kinds of waveguides, and to antennas for suppressing mutual coupling 3,22,23 . Relative circuit models concerning via capacitances, 24,25 multilayer printed circuit boards (PCBs) 26,27 have been analyzed.…”

Section: Introductionmentioning

confidence: 99%

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Substrate integrated coaxial line design for mmWave antenna with multilayer configuration

Luo

Shen

Cai

et al. 2022

Int J RF Mic Comp-Aid Eng

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In the 5G communication utilizing millimeter-wave (mmWave) band, multilayer configuration is popular for mmWave antenna with module-level integration and high-density design. However, multilayer construction adds several substrate layers and metallic ground layers to RF signal paths, which induces extra capacitances and inductances to the original antenna, thereby deteriorating impedance matching, and distorting radiation patterns. In this paper, we investigate the influence of multilayer structure on antenna performances, and apply substrate integrated coaxial line (SICL) design to eliminate these interferences from multilayer configuration. Equivalent circuit model of the multilayer configuration with SICL is presented and verified by simulations. A mmWave antenna unit and the 1 Â 4 array in multilayer configuration with SICL design are measured. Experiments show that SICL design enables impedance matching and radiation patterns to be maintained without distortions when applying multiple layers to the mmWave antenna, validating this method. It can be applied to 5G mmWave antennas that desire multilayer construction.

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“…Continuous transverse stub (CTS) arrays have the advantages of low profile, low loss, high gain and wideband, and are easy to realize beam-scanning [4,5]. The passive beam scanning CTS arrays have been suggested by moving the feeding structures or rotating the radiating stubs relatively to the feeding parallel plate waveguide (PPW) [6][7][8]. The beam scanning can also be achieved by loading phase shifter or switching feeding source [9,10].…”

Section: Introductionmentioning

confidence: 99%

C‐band frequency‐scanning continuous transverse stub array with high gain and low sidelobe level

Cao

Yang

et al. 2022

IET Microwaves Antenna & Prop

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A C‐band substrate integrated waveguide based frequency‐scanning continuous transverse stub (CTS) array with high gain and low sidelobe level (SLL) is presented in this paper. The newly suggested linear source generator (LSG) consists of a feeding probe, a main reflector, a sub‐reflector, and two metal matching vias. By introducing one matching via on the left side of probe and another one on the right side of the sub‐reflector, a broadband LSG is obtained to excite the CTS array with a wide scanning range. The operating mechanism of the two matching vias is analysed. In order to reduce SLL, a serial‐fed array with asymmetrically distributed stub width is designed according to Chebyshev distribution for the first time. A prototype of 12‐element array is designed, simulated and measured, and excellent agreements are achieved. The measured beam‐scanning range is from −52° to 2° within the operating frequency of 5.6–8 GHz, in which |S11| is less than −10 dB. The maximum gain is 22 dBi and the SLL varies between −21 dB and −18.2 dB. The proposed design approach can be applied to other bands and other level distributions. The proposed frequency scanning array has great potentials in radar and detection systems.

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Compact Beam-Scanning Flat Array Based on Substrate-Integrated Waveguide

Cited by 26 publications

References 13 publications

A Low-Sidelobe-Level Variable Inclination Continuous Transverse Stub Antenna with a Nonlinear Slow-Wave Structure

A Low-Sidelobe-Level Variable Inclination Continuous Transverse Stub Antenna with a Nonlinear Slow-Wave Structure

Substrate integrated coaxial line design for mmWave antenna with multilayer configuration

C‐band frequency‐scanning continuous transverse stub array with high gain and low sidelobe level

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