Design and Process Improvement of a Ku-band Wide Angle Low Side-lobe Frequency Scanning Antenna

AbstractInspired by the theory of leaky wave antenna, a broadband and wide-angle frequency scanning antenna is proposed in this paper. My goal is to trade a narrow frequency band for a wide-angle beam scanning. Since the dispersion of spoof surface plasmon polariton (SSPP) mode slow-wave possesses larger gradient than that of the waves in the air, the metallic corrugated line (MCL) is adopted for energy transmission. To convert confined slow-wave into radiated fast-wave, a number of metallic patches are alternatively and periodically loaded besides the MCL and fed by electrically coupling. Owing to the frequency-dispersive phase difference between two patches, the resultant radiations are capable of beam scanning. As an example, the fabricated prototype operates in a relative bandwidth of 19.5 % (from 7.4 GHz to 9.0 GHz). Both the simulated and measured results have verified that the main beam of leaky-wave radiation can continuously scan from the backward direction to the forward direction with a scanning angular domain of 56° and an average gain level of 12.0 dB.

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A Ku-Band Low-Profile Wide-Angle Scanning Antenna Array with Combined Beam Steering

2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE) ◽

10.1109/apeie.2018.8546218 ◽

2018 ◽

Author(s):

Yelena A. Litinskaya ◽

Stanislav V. Polenga ◽

Andrey V. Stankovsky ◽

Yury P. Salomatov

Keyword(s):

Antenna Array ◽

Beam Steering ◽

Wide Angle ◽

Low Profile ◽

Ku Band ◽

Scanning Antenna

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Frequency scanning antenna arrays with pentagonal dipoles of different impedances

Serbian Journal of Electrical Engineering ◽

10.2298/sjee1501099b ◽

2015 ◽

Vol 12 (1) ◽

pp. 99-108 ◽

Cited By ~ 2

Author(s):

Nikola Boskovic ◽

Branka Jokanovic ◽

Aleksandar Nesic

Keyword(s):

Antenna Array ◽

Antenna Arrays ◽

Side Lobe ◽

Side Lobe Level ◽

Scanning Angle ◽

Frequency Scanning ◽

Wide Range ◽

Scanning Antenna ◽

Antenna Characteristics

In this work we present the benefits of using pentagonal dipoles as radiating elements instead of classical printed dipoles in the design of frequency scanning antenna arrays. We investigate how impedance of pentagonal dipoles, which can be changed in a wide range, influences the overall characteristics of the uniform antenna array. Some very important antenna characteristics such as side lobe level, gain and scanning angle are compared for three different antenna arrays consisting of identical pentagonal dipoles with impedances of 500 ?, 1000 ? and 1500 ?.

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Frequency scanning antenna arrays with metamaterial based phased shifters

Facta universitatis - series Electronics and Energetics ◽

10.2298/fuee1903449b ◽

2019 ◽

Vol 32 (3) ◽

pp. 449-461

Author(s):

Nikola Boskovic ◽

Branka Jokanovic ◽

Vera Markovic

Keyword(s):

Antenna Arrays ◽

Side Lobe ◽

Phase Shifters ◽

Ring Resonators ◽

Split Ring ◽

Split Ring Resonators ◽

Frequency Scanning ◽

Suppression Phase ◽

And Control ◽

Scanning Antenna

This paper presents a simple design of linear series-fed frequency scanning antenna arrays with: (a) identical rectangular dipoles and (b) pentagonal dipoles having different impedances to provide enhanced side lobe suppression. Phase shifters are designed as a metamaterial unit cell consisting of split-ring resonators coupled with the parallel microstrip line. Shifter models variations are described and control of phase is demonstrated. Two antenna arrays are manufactured and measured.

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Frequency scanning antenna array with enhanced side lobe suppression

2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics ◽

10.1109/metamaterials.2014.6948597 ◽

2014 ◽

Cited By ~ 2

Author(s):

N. Boskovic ◽

B. Jokanovic ◽

A. Nesic

Keyword(s):

Antenna Array ◽

Side Lobe ◽

Frequency Scanning ◽

Side Lobe Suppression ◽

Scanning Antenna

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A Design Approach of Optical Phased Array with Low Side Lobe Level and Wide Angle Steering Range

Photonics ◽

10.3390/photonics8030063 ◽

2021 ◽

Vol 8 (3) ◽

pp. 63

Author(s):

Xinyu He ◽

Tao Dong ◽

Jingwen He ◽

Yue Xu

Keyword(s):

Phased Array ◽

Phase Distribution ◽

Beam Steering ◽

Side Lobe ◽

Design Approach ◽

Optical Antennas ◽

Side Lobe Level ◽

Wide Angle ◽

Spacing Distribution ◽

Optical Phased Array

In this paper, a new design approach of optical phased array (OPA) with low side lobe level (SLL) and wide angle steering range is proposed. This approach consists of two steps. Firstly, a nonuniform antenna array is designed by optimizing the antenna spacing distribution with particle swarm optimization (PSO). Secondly, on the basis of the optimized antenna spacing distribution, PSO is further used to optimize the phase distribution of the optical antennas when the beam steers for realizing lower SLL. Based on the approach we mentioned, we design a nonuniform OPA which has 1024 optical antennas to achieve the steering range of ±60°. When the beam steering angle is 0°, 20°, 30°, 45° and 60°, the SLL obtained by optimizing phase distribution is −21.35, −18.79, −17.91, −18.46 and −18.51 dB, respectively. This kind of OPA with low SLL and wide angle steering range has broad application prospects in laser communication and lidar system.

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