Dual-Band Circularly Polarized Shared-Aperture Array for $C$ -/ $X$ -Band Satellite Communications

Mao, Chunxu; Gao, Steven; Wang, Yi; Chu, Qing‐Xin; Yang, Xue‐Xia

doi:10.1109/tap.2017.2740981

Cited by 150 publications

(60 citation statements)

References 23 publications

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“…Thus, the antenna loss is reduced, and antenna structure is simplified. Compared with the work, this CP antenna has broader impedance/AR bandwidths and more stable in‐band gain resulting from the negative effect of the straight slot resonator on the patch current distribution is slight.…”

Section: Introductionmentioning

confidence: 80%

Broadband linearly/circularly polarized microstrip filtering antennas

et al. 2019

Micro & Optical Tech Letters

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Two linearly and circularly polarized filtering antennas with low profile, broad bandwidth, and improved gain are proposed. Without increasing the antenna profile, a vertically coupled resonant structure, which can broaden the bandwidth and provide the filtering response, is employed. To prove the concept, a broadband linearly polarized (LP) filtering antenna is designed by integrating the hairpin resonator on the feed, U‐slot resonator in the ground and the patch resonator. Then, we design a broadband circularly polarized (CP) filtering antenna, which utilizes a single‐feed dual‐coupled structure for two coupling routes with 90° phase difference to excite two orthogonal resonant modes without power divider and phase delay line. Both antennas exhibit third‐order filtering characteristics with improved bandwidths and flat in‐band gain. The equivalent circuits of both antennas are discussed. The LP and CP antennas achieve an impedance band of 28% and 29.6%, respectively. The CP antenna shows a 3‐dB axial ratio bandwidth of 17.6%. Both antennas also exhibit the high gain of 9.5 dBic with less than 0.6 dB variation within the band.

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Section: Introductionmentioning

confidence: 80%

Broadband linearly/circularly polarized microstrip filtering antennas

et al. 2019

Micro & Optical Tech Letters

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“…However, the size of perforations is a critical issue to tackle in that big perforations affect the performance of lower frequency patches, and small perforations cause strong mutual coupling. Comparatively, the configurations of interlaced low-frequency elements with high-frequency patches are more flexible, because the low frequency interlaced elements could be dipoles [11][12][13], square ring antennas [14], cross dielectric resonator antennas (DRAs) [15], corner-etched circular patches [16], and patches [1,17,18], and any FR can be realized theoretically [13]. Beyond that, some derivative models are also proposed [19,20].…”

Section: Introductionmentioning

confidence: 99%

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

Lan

Zhang

et al. 2020

Int. J. Microw. Wireless Technol.

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This paper presents a novel dual-band (DB) dual-polarized (DP) shared aperture antenna with high isolation by using a combination of microstrip dipoles and dielectric resonator antennas (DRAs) for S and C bands, respectively. In the S band, two sets of proximity coupled stacked microstrip dipoles which crossed at the center are employed to achieve dual-linear polarization (DLP) and obtain desired bandwidth (BW), isolation, and pure polarization. The rectangle DRA with hybrid feed is selected as the C band element for its advantages of small base area and high isolation, and a 2 × 2 array is presented with the “pair-wise” anti-phase feed technique to achieve a low cross-polarized level. Moreover, benefited from the back feed scheme, the proposed antenna has a symmetrical structure and has the potential of expanding into a larger aperture. The proposed antenna has been manufactured and measured, and the results agree well with simulations, which prove the validity of the proposed design.

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“…In this paper, the microstrip patch array antenna is proposed for use in the X-band communication frequency range (8)(9)(10)(11)(12) [7], specifically at 9.5 GHz. The antenna is expected to be compact, portable, exhibit fairly high gain/directivity, and able to reduce the side lobe radiation pattern.…”

Section: Introductionmentioning

confidence: 99%

Study of Microstrip Patch Array Antenna for Side Lobe Suppression in the X-Band Region Using Uniform, Binomial and Tschebyscheff Excitation Methods

Mohamad¹,

Ruslan²,

Badron³

et al. 2020

IIUMEJ

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In this paper, a microstrip patch array antenna is designed and simulated to operate in the X-band frequency region at 9.5 GHz. For X-band communication transmission, it is necessary to suppress the side lobe radiation pattern of the antenna as much as possible to avoid the transmission being intercepted and/or received by undesirable neighbouring satellites. The geometrical design of the microstrip patch array antenna is simulated and executed using CST Microwave Studio (CST MWS) in order to study the effects of various antenna parameters such as S11, gain, directivity, side lobe level, and angular width. It is shown that the proposed antenna exhibits a low side lobe level of -14.2 dB with an acceptable high gain and directivity of 16.5 dB and 17.7 dB, respectively. The antenna configuration also has a size of only 285 mm × 59.275 mm which is much more compact and lightweight compared to the standard reflector antennas that are used for most X-band communication transmission. ABSTRAK: Kajian ini berkaitan antena cantuman barisan jalurmikro yang direka dan disimulasi beroperasi pada 9.5 GHz frekunsi daerah jalur-X. Pada transmisi komunikasi jalur-X, corak radiasi sisi-lobus antena perlu ditahan sebanyak mungkin bagi mengelak transmisi dipintas dan/atau diterima oleh satelit tetangga yang tidak di ingini. Rekaan geometri antena cantuman barisan jalurmikro disimulasi dan diuji menggunakan perisian CST Studio Gelombang Mikro (CST MWS) bagi mengkaji pelbagai kesan parameter antenna seperti S11, gandaan, keterarahan, tahap sisi-lobus dan lebar sudut. Didapati bahawa antena yang dicadangkan mempunyai tahap sisi-lobus -14.2 dB yang rendah dengan gandaan tinggi yang boleh diterima dan keterarahan sebanyak 16.5 dB dan 17.7 dB, masing-masing. Tatabentuk antena mempunyai saiz 285 mm × 59.275 mm yang kompak dan ringan berbanding antena pemantul piawai, di mana telah digunakan pada kebanyakan jalur-X transmisi komunikasi.

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Dual-Band Circularly Polarized Shared-Aperture Array for $C$ -/ $X$ -Band Satellite Communications

Cited by 150 publications

References 23 publications

Broadband linearly/circularly polarized microstrip filtering antennas

Broadband linearly/circularly polarized microstrip filtering antennas

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

Study of Microstrip Patch Array Antenna for Side Lobe Suppression in the X-Band Region Using Uniform, Binomial and Tschebyscheff Excitation Methods

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