A novel dual-band dual-polarized shared-aperture antenna with high isolation

Xu, Jiachen; Lan, Bozhang; Zhang, Jiakai; Guo, Chao; Ding, Jun

doi:10.1017/s1759078719001454

Cited by 8 publications

(3 citation statements)

References 23 publications

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“…Several shared-aperture arrays have been reported, and the typical configurations are based on perforated technique [2][3][4], interlaced technique [4][5][6], and multi-band antenna elements [7][8][9]. In general, the shared-aperture arrays based on multi-band antenna elements realise the reuse of antenna itself, which leads to higher aperture efficiency.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band orthogonal polarised shared aperture array with shared‐elements

Guo

Ding

2021

Electronics Letters

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In this paper, an orthogonal polarised dielectric resonator antenna (DRA) which can operate at S‐ and C‐band, has been designed as “shared‐element” for forming a dual‐band shared aperture array. Furthermore, in this shared aperture array, the S‐band array contains four shared‐elements, and the C‐band array contains four shared‐elements and twelve C‐band DRA elements. Moreover, a phase compensation power divider is employed to help offset the radiation performance differences between the two types of antenna elements when forming the C‐band array. A prototype array was fabricated and measured, showing that the antenna can cover the band of 2.4–2.63 GHz and 6.9–7.1 GHz, respectively. The isolation between bands is higher than 30 dB. The cross‐polarisation levels are less than ‐30 dB in both bands.

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Section: Introductionmentioning

confidence: 99%

Dual‐band orthogonal polarised shared aperture array with shared‐elements

Guo

Ding

2021

Electronics Letters

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“…At present, most SAAs can only achieve dual-bands, and the typical structures are perforated type [4][5][6][7][8], interleaved type [9][10][11], as well as the latest proposed shared element type [12]. However, there is not much literature on TB SAA due to the difficulty of array arrangement.…”

Section: Introductionmentioning

confidence: 99%

Compact Tri-Band Dual-Polarized Shared Aperture Array

Xu¹,

Guo²,

Ding³

2021

PIER M

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In this paper, an S/C/Ku triple-band (TB) dual-polarization (DP) shared aperture array (SAA) with an approximate frequency ratio of 1 : 1.8 : 4.5 is proposed. An S/C dual-band dual-polarized (DBDP) perforated patch antenna is designed as a shared element, and the S-band array consists of S-band-working shared elements. The C-band array interlaces with C-band-working shared element and C-band cross-patches with phase compensation. The Ku band array consists of dual-polarization rectangular dielectric resonator antennas (DRAs) for its small section area and high design freedom. In order to ensure the symmetry of the structure, all the ports adopt a vertical welding structure. A 1 × 3 prototype array is fabricated and measured, showing that the S-, C-, and Ku-bands obtain the bandwidths of 2%, 2.1%, and 1.8%, respectively. The polarization isolation is better than 20 dB in all three bands, while the cross-polarization is lower than −20 dB. The proposed array has the advantages of low cost and high integration; moreover, the proposed array owns excellent potential for expansion to large aperture benefited from its symmetry.

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“…Therefore, the DBDP shared-aperture antennas have been widely studied, and the two of the most typical configurations are based on perforated technique [2][3][4][5][6] and interlaced technique, [7][8][9][10][11] respectively. However, the above two methods are generally used for designing the SAA with a frequency ratio less than 4, but hardly can be seen in large frequency ratio SAA.…”

Section: Introductionmentioning

confidence: 99%

Dielectric resonator used as radome and antenna: A new concept for large frequency ratio shared aperture antenna design

Guo

Ding

2021

Micro & Optical Tech Letters

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This paper presents a novel transmissive type L/Ku dual‐band dual‐polarization (DBDP) shared aperture antenna (SAA) with a large frequency ratio. The L‐band antenna employs a balanced‐fed hollow dielectric resonator antenna (DRA), which has broadband and low cross‐polarization; also, it can be used as a radome to protect the Ku‐band array. The Ku‐band uses a 4 × 4 dual‐polarized microstrip antenna array placed inside the hollow DRA and radiates through it. In order to verify the design, a prototype antenna was manufactured and measured. The measured result shows that the SAA covering the frequency bands of 0.95–1.42 GHz and 13.16–13.84 GHz with the reflection coefficient below −10 dB, the isolation between polarizations is better than 40 dB for L‐band and 25 dB for Ku‐band, the measured gain is 4.8 dBi for L‐band and 16.7 dBi for Ku‐band, and the cross‐polarization level for L‐ and Ku‐band is lower than −28 and −20 dB, respectively.

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A novel dual-band dual-polarized shared-aperture antenna with high isolation

Cited by 8 publications

References 23 publications

Dual‐band orthogonal polarised shared aperture array with shared‐elements

Dual‐band orthogonal polarised shared aperture array with shared‐elements

Compact Tri-Band Dual-Polarized Shared Aperture Array

Dielectric resonator used as radome and antenna: A new concept for large frequency ratio shared aperture antenna design

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