scholarly journals LOW REFLECTION COEFFICIENT KU-BAND ANTENNA ARRAY FOR FMCW RADAR APPLICATION

2020 ◽  
Vol 102 ◽  
pp. 127-137
Author(s):  
Laxmikant Minz ◽  
Hyunseong Kang ◽  
Seong-Ook Park
Keyword(s):  
Reflection Coefficient ◽  
Antenna Array ◽  
Fmcw Radar ◽  
Ku Band

scholarly journals A Compact Ku-Band Active Electronically Steerable Antenna with Low-Cost 3D T/R Module

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Zheng Xu ◽  
Chengxiang Hao ◽  
Kuiwen Xu ◽  
Shichang Chen
Keyword(s):  
Antenna Array ◽  
System Integration ◽  
Low Cost ◽  
Axial Ratio ◽  
Antenna System ◽  
Measurement Results ◽  
Steerable Antenna ◽  
Vertical Interconnection ◽  
Electronic Steering ◽  
Ku Band

This paper presents a novel compact Ku-band active electronically steerable antenna array design with a low-cost and integrated T/R 3D module employed for airborne synthetic aperture radar (SAR) systems. The entire system adopts 3D multilayer technology with vertical interconnection to construct the hermetically packaging RF modules. By assembling different multifunctional modules into a whole multilayer board, the 3D T/R technique greatly improves the system integration and reduces implementation cost and size. Besides, a wideband circular polarized antenna array was designed in LTCC and connected to the proposed T/R modules to form a complete AESA. The whole proposed antenna system has been fabricated and experimentally investigated. Measurement results showed very good phased array performances in terms of gain, axial ratio, and radiating patterns. The low-cost, lightweight, and low-power features exhibited by the proposed design validate its applicability for weight and power constrained platforms with great electronic steering ability.

scholarly journals Design of a Small-Size Broadband Circularly Polarized Microstrip Antenna Array

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Pingyuan Zhou ◽  
Zhuo Zhang ◽  
Mang He ◽  
Yihang Hao ◽  
Chuanfang Zhang
Keyword(s):  
Reflection Coefficient ◽  
Antenna Array ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Axial Ratio ◽  
Satellite Communications ◽  
Lateral Size ◽  
Circularly Polarized ◽  
Feeding Technique ◽  
Microstrip Antenna Array

A small-size 2×2 broadband circularly polarized microstrip antenna array is proposed in this article. The array has four broadband dual-feed U-slot patch antenna elements with circular polarization, and the sequential feeding technique is used to further enhance the 3 dB axial ratio bandwidth. The lateral size of the fabricated array is as small as 1.33λ0×1.33λ0, and the profile is only 0.04λ0. Measured results show that the overlapped −10 dB reflection coefficient and the 3 dB AR bandwidth is 53%, and the variation of the measured realized gain is less than 1 dB for S-band satellite communications (1.98–2.2 GHz).

scholarly journals Feasibility Investigation of SIW Cavity-Backed Patch Antenna Array for Ku Band Applications

2019 ◽  
Vol 9 (7) ◽  
pp. 1271 ◽  
Author(s):  
Onofrio Losito ◽  
Vincenza Portosi ◽  
Giuseppe Venanzoni ◽  
Francesco Bigelli ◽  
Davide Mencarelli ◽  
...  
Keyword(s):  
Antenna Array ◽  
Antenna Arrays ◽  
Patch Antenna ◽  
Satellite Communication ◽  
Feasible Solution ◽  
Microstrip Patch Antenna ◽  
Digital Radio ◽  
Microstrip Patch ◽  
G 13 ◽  
Ku Band

A cavity-backed microstrip patch antenna array was optimized in the Ku band. The backing cavity was designed under each patch antenna of the array in order to increase the bandwidth and minimize the intercoupling among the radiating elements. Substrate integrated waveguide (SIW) technology was employed to fabricate the above-mentioned cavity below the radiating patch. More precisely, four microstrip array antennas, made by 2 × 2, 4 × 4, 8 × 8, and 16 × 16 elements were designed, fabricated, and characterized. The measured maximum gain was G = 13 dBi, G = 18.7 dBi, G = 23.8 dBi, and G = 29.2 dBi, respectively. The performance of the proposed antenna arrays was evaluated in terms of radiation pattern and bandwidth. An extensive feasibility investigation was performed even from the point of different materials/costs in order to state the potential of the engineered antennas in actual applications. The obtained results indicate that a cavity-backed microstrip patch antenna is a feasible solution for broadband digital radio and other satellite communication overall for niche applications.

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