Dual-Polarized Tightly Coupled Dipole Array for UHF–&lt;italic&gt;X&lt;/italic&gt;-Band Satellite Applications

Zhou, Wenyang; Chen, Yikai; Yang, Shiwen

doi:10.1109/lawp.2019.2894348

Cited by 38 publications

(36 citation statements)

References 19 publications

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“…Since the high impedance of the TCDA aperture (

377

), it is hard to match with the standard 50

coaxial interfaces directly. Researchers have proposed many practical feeding architectures, such as feed organizers [ 22 ], coaxial cable feeds [ 23 ], TCDA with integrated baluns (TCDA-IB) [ 24 , 25 , 26 , 27 , 28 ], Planar Ultrawideband Modular Array (PUMA) feeds [ 29 , 30 , 31 ]. Generally, aiming at the impedance matching, a dielectric superstrate is usually placed over the dipole elements to drop the aperture impedance from 377

down to 200

.…”

Section: Introductionmentioning

confidence: 99%

Ultrawideband, Wide Scanning Stripline-Fed Tightly Coupled Array Antenna Based on Parallel-Dipole Elements

Liang

Yin

Chen

et al. 2020

Sensors

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A stripline-fed tightly coupled array antenna with compact size, large scan volume and low cross-polarization characteristics is proposed for ultrawideband (UWB) applications. Simple impedance-matching process is realized by using parallel dual dipoles. Meanwhile, the parallel symmetrical radiating structures minimize the cross-polarization field components dramatically. The mitigation of various undesired resonances is studied in detail. An infinite array is designed to achieve 3:1 bandwidth (6−18 GHz) when scanning ±60∘ in the E-/D-planes (VSWR < 2.5) and H-plane (VSWR < 3.5). The cross-polarization levels remain below −29 dB at broadside. A 16 × 16 prototype is fabricated to demonstrate the design. The measured results are consistent well with the simulated ones. The overall size of the prototype at the lowest operating frequency is 3×3×0.4λ03 (15×15×2cm3). Due to its wide bandwidth, good electronic scan performance and compact size, the proposed antenna array is a good candidate for modern wireless platforms.

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“…Since the high impedance of the TCDA aperture (

377

), it is hard to match with the standard 50

down to 200

.…”

Section: Introductionmentioning

confidence: 99%

Ultrawideband, Wide Scanning Stripline-Fed Tightly Coupled Array Antenna Based on Parallel-Dipole Elements

Liang

Yin

Chen

et al. 2020

Sensors

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“…Dipole antenna element is the main part of the radiator structure of TCDA, thus the first step in TCDA development is to determine the shape of the dipoles. Because of the low-profile height and low cross polarization performance, horizontal bowtie dipoles are widely adopted in TCDA developments [4]- [7]. In dual-polarized TCDA designs, the two orthogonal polarized bowtie dipoles [5]- [7] are usually printed on the two surfaces of a dielectric substrate.…”

mentioning

confidence: 99%

“…Because of the low-profile height and low cross polarization performance, horizontal bowtie dipoles are widely adopted in TCDA developments [4]- [7]. In dual-polarized TCDA designs, the two orthogonal polarized bowtie dipoles [5]- [7] are usually printed on the two surfaces of a dielectric substrate. Due to the closely spaced antenna elements in TCDAs, such kind of dual-polarized bowtie dipole configuration causes many difficulties in the soldering of feeding structure with the dipole terminals [7].…”

mentioning

confidence: 99%

“…In dual-polarized TCDA designs, the two orthogonal polarized bowtie dipoles [5]- [7] are usually printed on the two surfaces of a dielectric substrate. Due to the closely spaced antenna elements in TCDAs, such kind of dual-polarized bowtie dipole configuration causes many difficulties in the soldering of feeding structure with the dipole terminals [7]. Alternatively, the PUMA [18] only consists of irregular dipoles over the top surface of dielectric substrate.…”

mentioning

confidence: 99%

“…It indeed facilitates the soldering of dual-polarized antenna array in the assemble stage. However, the equivalent circuit model (ECM) of the irregular dipoles has not been developed in previous research [17], [7]- [9].…”

mentioning

confidence: 99%

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Efficient Design of Tightly Coupled Dipole Array Using an Equivalent Circuit-Based Approach

2020

Self Cite

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This paper proposes an efficient and systematic design approach for tightly coupled dipole array (TCDA) designs. In this approach, the radiator structure and feeding structure are designed and optimized based on their equivalent circuit models (ECM) respectively. A novel ECM is proposed to accurately describe the impedance characteristics of the radiator structure with dual-diamond dipoles. The proposed ECM of the radiator structure keeps its accuracy for variable design parameters. The ECM of the proposed feeding structure is also developed to analyze its impedance characteristics. As compared with conventional brute-force optimizations based on full-wave simulations, the two ECMs make it easy and efficient to design wideband TCDAs. A dual-polarized TCDA is designed with the proposed approach to illustrate the efficiency of the approach. The resultant TCDA operates in a wide frequency band of 0.87-10.14 GHz with VSWR≤2 for broadside radiation. Meanwhile, the VSWR value under all conditions (broadside, ±60 • scanning in E-and H-planes) remains ≤3 over the frequency band of 0.8-9 GHz. A 10 × 10 prototype is fabricated to demonstrate the design. INDEX TERMS Tightly coupled dipole array (TCDA), equivalent circuit model (ECM), phased array. I. INTRODUCTION

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Wideband tightly‐coupled dual‐line polarized P‐band antenna array with low‐profile lightweight metal structure

Sun

Wang

et al. 2021

Int J RF Mic Comp-Aid Eng

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In this article, an all-metal structure antenna array is proposed. The novel hollow-out structures are designed to achieve low profile and lightweight. The top structure of the element is also tightly coupled, once again lowering the antenna array profile. The overall size of the array is 1354.0 Â 1354.0 mm 2 , the spacing between elements is 323.0 mm. The optimized array-structure profile is only 0.12 λ 0 (λ 0 corresponds to the wavelength of 0.4 GHz). In addition, an excellent dual-line polarization radiation is achieved by using a crossstaggered arrangement. Both polarizations of the array have a cross-polarization-level of smaller than À30 dB. In order to verify the feasibility of the scheme, prototype processing and testing are carried out, and the test results are consistent with the simulation results. The frequency band covers the P-band (0.4-0.7 GHz). The active voltage standing wave ratios (VSWRs) are less than 2.0. In addition, the antenna array has favorable radiation characteristics.The measured realized gain varies from 14.7 to 19.6 dBi over the work band. The total antenna efficiency is higher than 83%. It can be applied to phased arrays for the satellite system and other broadband lightweight metal antennas.

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Dual-Polarized Tightly Coupled Dipole Array for UHF–<italic>X</italic>-Band Satellite Applications

Cited by 38 publications

References 19 publications

Ultrawideband, Wide Scanning Stripline-Fed Tightly Coupled Array Antenna Based on Parallel-Dipole Elements

Ultrawideband, Wide Scanning Stripline-Fed Tightly Coupled Array Antenna Based on Parallel-Dipole Elements

Efficient Design of Tightly Coupled Dipole Array Using an Equivalent Circuit-Based Approach

Wideband tightly‐coupled dual‐line polarized P‐band antenna array with low‐profile lightweight metal structure

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