35 GHz compact radar using fan beam antenna array for obstacle detection

Lee, H.; Kim, Y.H.; Volkov, V. A.; Kozhin, R.; Vavriv, D. M.; Kim, T.S.

doi:10.1049/el:20072774

Cited by 16 publications

(5 citation statements)

References 2 publications

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“…The horn antenna can be used as a radiating source in the RF circuit front end, or it can act as a feeder for the other radiating structures such as parabolic dishes. H-plane horn antenna, the one which provides a fan beam over a wide bandwidth, is an interesting solution for applications such as aircraft landing and collision avoidance systems [15,16], Doppler weather radar [17], imaging systems [18], and fixed access points [19]. Consequently, in [1], a horn-shaped ridge is used to excite an array of long slots, which are separated by a λ/2.…”

Section: Introductionmentioning

confidence: 99%

Design of an E-sectoral horn based on PRGW technology for 5G applications

Eldin

Shams²,

Allam³

et al. 2022

Int. J. Microw. Wireless Technol.

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E-plane sectoral horn antenna based on printed ridge gap waveguide (PRGW) technology is designed for 5G applications. It is implemented on the top plate of the PRGW structure to avoid the losses and dispersion associated with conventional feeding mechanisms. The quasi-transverse electromagneticPRGW-based antenna is excited through a planar microstrip transition. First, the single horn antenna element is introduced with the microstrip feeding section. It shows an impedance bandwidth of fractional bandwidth 26% from 45.7 to 55.4 GHz with the realized gain of 12.7 dBi and radiation efficiency of 90%. In order to maximize the realized gain, a four-element linear horn array is introduced. The same impedance bandwidth is maintained with the array having a gain of 18.6 dBi from 45.7 to 55.4 GHz. The overall antenna array performance in the entire operating frequency range is stable with a radiation efficiency around 85%. Three matching sections are implemented to achieve better impedance matching. One is used to match the horn with the feeding aperture via the PRGW line. Another section is designed to match microstrip transition with PRGW ridge. Finally, two-stage quarter wavelength transformers are required to match the power divider with the array feeding network. A prototype of single-element horn antenna was fabricated to verify the concept of the design. Simulated and measured results show that the proposed antenna can operate in the frequency band of 45–55 GHz with good agreement of radiation performance. Moreover, the proposed designs are implemented and simulated using two microwave simulation tools (CST and HFSS) to verify the radiation performance, which exhibits good agreement. The design of an E-sectoral horn antenna and its array with high gain based on PRGW is demonstrated for the first time which is considered a novel issue. It can be integrated with other passive and active elements in communication systems. Thus, it can be a valuable component in 5G communication due to its high gain, compact size and ultra-wide band.

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Section: Introductionmentioning

confidence: 99%

Design of an E-sectoral horn based on PRGW technology for 5G applications

Eldin

Shams²,

Allam³

et al. 2022

Int. J. Microw. Wireless Technol.

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“…Special beam antennas with fan-shaped beams or plane waves have significant applications in many fields, such as imaging [1], radar detecting [2,3], and communication [4,5]. One of the effective ways to realize the special beams is lens antenna [6].…”

Section: Introductionmentioning

confidence: 99%

Broadband metamaterial lens antennas with special properties by controlling both refractive-index distribution and feed directivity

Shi

Chen

et al. 2018

J. Opt.

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A new method is proposed to design gradient refractive-index metamaterial lens antennas by optimizing both the refractive-index distribution of the lens and the feed directivity. Comparing to the conventional design methods, source optimization provides a new degree of freedom to control aperture fields effectively. To demonstrate this method, two lenses with special properties based on this method are designed, to emit high-efficiency plane waves and fan-shaped beams, respectively. Both lenses have good performance and wide frequency band from 12 to 18 GHz, verifying the validity of the proposed method. The plane-wave emitting lens realized a high aperture efficiency of 75%, and the fan-beam lens achieved a high gain of 15 dB over board bandwidth. The experimental results have good agreement with the design targets and full-wave simulations.

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“…Recently, several wireless communication applications such as short-range broadband wireless communications, automotive collision-avoidance radar, and local cellular radio networks (LCRNs) have emerged to satisfy increasing demands [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Among them, the 60 GHz wireless LAN is a hot issue because it can support high data rate links in the unlicensed band around 60 GHz.…”

Section: Introductionmentioning

confidence: 99%

Fan-beam reflector back array antenna for V-band WLAN applications

Naghshvarianjahromi

Oraizi

2009

2009 Asia Pacific Microwave Conference

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In this paper, a V-band fan beam reflector back array antenna is introduced. This is made up of two main parts, namely a planar array and a main reflector and enables an easy implementation. The reflector part is connected to the ground of planar array that makes the reflector not an ordinary parasitic element. The proposed antenna has dimensions 4.65×31×2.63 mm 3 including the reflector. For 60 GHz wireless LAN applications, a high antenna gain is required to overcome the propagation losses. In addition, to maximize the azimuth coverage, this antenna has a fan beam pattern in V-band at 58.8-60.8 GHz. The gain for proposed antenna at 60 GHz is 15.2 dBi. The numerical analysis shows that the proposed antenna can be a good candidate for 60 GHz wireless LAN applications.Index Terms -reflector back, sub-radiator, array antenna, fan-beam antenna, V-band applications.

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35 GHz compact radar using fan beam antenna array for obstacle detection

Cited by 16 publications

References 2 publications

Design of an E-sectoral horn based on PRGW technology for 5G applications

Design of an E-sectoral horn based on PRGW technology for 5G applications

Broadband metamaterial lens antennas with special properties by controlling both refractive-index distribution and feed directivity

Fan-beam reflector back array antenna for V-band WLAN applications

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