Low-cost printed antenna array built with hybrid feed for urban microwave links

Hautcoeur, Julien; Cruz, Eduardo Motta; Bartholomew, J G; Sarrazin, Julien; Mahé, Yann; Toutain, S.

doi:10.1049/iet-map.2009.0383

Cited by 12 publications

(4 citation statements)

References 3 publications

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“…Several microstrip array antennas have been extensively employed in radar and other wireless communications systems [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. Although they have promising features, such as low profile, low cost, and fabrication ease, their low-power handling capacity and high losses often make them less suitable for marine radar [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Compact Slotted Waveguide Antenna Array Using Staircase Model of Tapered Dielectric-Inset Guide for Shipboard Marine Radar

Anim

Diawuo

Jung

2021

Sensors

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This paper presents a new configuration of a slotted waveguide antenna (SWA) array aimed at the X-band within the desired band of 9.38~9.44 GHz for shipboard marine radars. The SWA array, which typically consists of a slotted waveguide, a polarizing filter, and a metal reflector, is widely employed in marine radar applications. Nonetheless, conventional slot array designs are weighty, mechanically complex, and geometrically large to obtain high performances, such as gain. These features of the conventional SWA are undesirable for the shipboard marine radar, where the antenna rotates at high angular speed for the beam scanning mechanism. The proposed SWA array herein reduces the conventional design’s size by 62% using a tapered dielectric-inset guide structure. It shows high gain performance (up to 30 dB) and obtains improvements in radiation efficiency (up to 80% in the numerical simulations) and weight due to the use of loss and low-density dielectric material.

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Section: Introductionmentioning

confidence: 99%

Compact Slotted Waveguide Antenna Array Using Staircase Model of Tapered Dielectric-Inset Guide for Shipboard Marine Radar

Anim

Diawuo

Jung

2021

Sensors

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“…Microstrip patch array antennas are widely applied in radar systems [3][4][5][6] and wireless communications systems [7][8][9][10], which have a high gain, a light weight, a low cost, and a low profile and can accurately control radiation patterns. Resonant and traveling-wave feeds are commonly used in a series-fed structure.…”

Section: Introductionmentioning

confidence: 99%

SFCFOS Uniform and Chebyshev Amplitude Distribution Linear Array Antenna for K-Band Applications

Kothapudi

2019

J Electromagn Eng Sci

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In this study, a compact series-fed center-fed open-stub (SFCFOS) linear array antenna for K-band applications is presented. The antenna is composed of a single-line 10-element linear array. A symmetrical Chebyshev amplitude distribution (CAD) is used to obtain a low sidelobe characteristic against a uniform amplitude distribution (UAD). The amplitude is controlled by varying the width of the microstrip patch elements, and open-ended stubs are arranged next to the last antenna element to use the energy of the radiating signal more effectively. We insert a series-fed stub between two patches and obtain a low mutual coupling for a 4.28-mm center-to-center spacing (0.7λ at 21 GHz). A prototype of the antenna is fabricated and tested. The overall size of the uniform linear array is 7.04 × 1.05 × 0.0563 λg 3 and that of the Chebyshev linear array is 9.92 × 1.48 × 0.0793 λ g 3 . The UAD array yields a |S11| < -10 dB bandwidth of 1. 33% (20.912-21.192 GHz) and 1. 45% (20.89-21.196 GHz) for the CAD. The uniform array design gives a −23 dB return loss, and the Chebyshev array achieves a −30.68 dB return loss at the center frequency with gains of 15.3 dBi and 17 dBi, respectively. The simulated and measured results are in good agreement. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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“…Microstrip antenna arrays are widely used in numerous wireless communication applications such as radar and satellite systems, since they usually have low profile, low cost, light weight, and high gain. (Lee et al, 2001; Barba, 2008;Hajian et al, 2009;Hautcoeur et al, 2010;Huque et al, 2011;Iizukat et al, 2003;Jung et al, 2012;Li et al, 2012) [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Vertical Polarized 1 × 3 Series-Fed Linear Array With Gain and Front-to-Back Ratio Enhancement for Airborne Sar-X Applications

Kothapudi¹,

Kumar²

2019

PIER M

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In this paper, a gain and front-to-back ratio (FTBR) enhanced vertically polarized 1 × 3 series-fed linear array for Airborne Synthetic Aperture Radar-X-band applications has been presented. The proposed antenna prototype is designed at 9.65 GHz (X-band). The design consists of a square radiating patch, substrate, quarter wave transformer, 50 Ω matched transformer, and series feed line (SFL). The simulated antenna prototype is fabricated and successfully measured. The final antenna prototype has a dimension 3.256 × 2.035 × 0.0645λ 3 g (Guided wavelength) at 9.65 GHz. The results indicate that the proposed antenna prototype yields an impedance bandwidth > 140 MHz (from 9.591 to 9.712 GHz) defined by S11 < −10 dB. The low profile/cost antenna prototype has a fully directional radiation pattern with measured gain up to 12.2 dBi and estimated radiation efficiency of 89%, respectively. A brass plate with 0.8 mm thickness has been fabricated to attach to the antenna ground plane for improving FTBR of more than 30 dB. All these features make the proposed antenna array have good potential applications in X-band system, especially in 9.65 GHz Airborne SAR systems. The aperture of the antenna is 80 mm × 50 mm, which equals 31 wavelengths at 9.65 GHz.

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Low-cost printed antenna array built with hybrid feed for urban microwave links

Cited by 12 publications

References 3 publications

Compact Slotted Waveguide Antenna Array Using Staircase Model of Tapered Dielectric-Inset Guide for Shipboard Marine Radar

Compact Slotted Waveguide Antenna Array Using Staircase Model of Tapered Dielectric-Inset Guide for Shipboard Marine Radar

SFCFOS Uniform and Chebyshev Amplitude Distribution Linear Array Antenna for K-Band Applications

Vertical Polarized 1 × 3 Series-Fed Linear Array With Gain and Front-to-Back Ratio Enhancement for Airborne Sar-X Applications

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