Modification of Sinuous Antenna Arms for UWB Radar Applications

Kang, Yunsu; Kim, K.; Scott, Waymond R.

doi:10.1109/tap.2015.2477492

Cited by 24 publications

(23 citation statements)

References 8 publications

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“…But it demonstrates dual circular / dual linear polarization characteristics along with self-complementary, frequency independent nature. The features of sinuous makes a great option for UWB applications such as radars, electronic warfare and high sensitivity requirement at square kilometer array radio telescopes [50][51][52][53]. But in case of radio astronomy applications, instead of cavity backing structure, sinuous array antennas are arranged on a cones surface at 45°.…”

Section: Introductionmentioning

confidence: 99%

Review on Ultra-Wideband Phased Array Antennas

Latha

Ram²,

Kumar

et al. 2021

IEEE Access

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Ultra-wideband (UWB) phased array antennas are more essential for radar, communication and EW applications. Systems can operate over wide band coverage. The high gain systems require wideband, wide angle scanning, good radiation pattern and returnloss over multioctave bandwidth. This review discusses the problems present in this system, which include mutual coupling, grating lobe rejection, active return loss, gain fluctuation with scanning, and multiple beam generation. In this, the aperture size of the array is limited by the overall gain requirement of the system. On the other hand low gain systems require wideband with good radiation pattern and axial ratio. Here the matching over wideband is simpler as it depends on broadband balun configuration. This system has limited bandwidth over scan angles. These antennas more preferred as wearable antennas in communication applications. This paper mainly discusses the existing UWB phased array antennas such as Vivaldi Arrays, All-Metal Arrays, Spiral Arrays, Sinuous Arrays, and Coupled Arrays. This review paper presents a correct direction for selecting the type of antenna in terms of impedance bandwidth, gain, and materials influencing antenna performance, suited for different applications.

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Section: Introductionmentioning

confidence: 99%

Review on Ultra-Wideband Phased Array Antennas

Latha

Ram²,

Kumar

et al. 2021

IEEE Access

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“…It is also known as self-complementary antenna, where the geometry of the antenna does not change while interchanging the metallic and dielectric parts of the radiating element. Most of the Sinuous antenna research work has been proposed for L-band and high frequencies [11][12][13][14][15]. Many researchers have reported Sinuous antennas with two [11] or four arms [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…Four-arm Sinuous antenna is designed for the frequency range from 1 GHz to 5 GHz for reflector based searching system and phased focal plane array applications in [14]. In [15], a modified four-arm sinuous antenna is presented for ultra-wideband (UWB) radar applications. Sinuous antenna phased array for millimeter wavelength is presented in [16].…”

Section: Introductionmentioning

confidence: 99%

Self Complementary Frequency Independent Triple Band Sinuous Antenna Array for Wireless Applications

Indumathi¹,

Kavitha²,

Iyampalam³

2018

PIER Letters

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In this article, a self complementary frequency independent triple band Sinuous Antenna Array (SAA) is designed for wireless applications such as Mobile Satellite Service (MSS), Global Positioning System (GPS) and Global System for Mobile communications (GSM). Four Sinuous elements are connected to the nearest one in such a way to form an array structure. A prototype of a Sinuous Antenna Array (SAA) is embedded into a flame retardant-4 (FR-4) dielectric material. The performance of the proposed antenna array has been analyzed by using Ansys High Frequency Structure Simulator (HFSS). The suggested antenna is fabricated and tested. From the measured results, the proposed antenna array can be operated at the frequencies of 1.54 GHz for GPS, 1.76 GHz for GSM and 2 GHz for MSS with a reflection coefficient of below −10 dB. It has good reflection coefficient characteristics, Voltage Standing Wave Ratio, impedance bandwidth, axial ratio, surface current distribution and radiation characteristics.

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“…특히, 전자전(electronic warfare) 시스템에서 편 파 정합도를 높여 수신확률을 높이기 위해서 광대역, 넓 은 빔폭(beamwidth) 및 이중 선형 편파의 안테나 특성이 요구된다 [3] . 주파수 독립 안테나들 중 가장 최근에 개발 된 시뉴어스 안테나(sinuous antenna)는 광대역에서 이중 선형 편파를 생성할 수 있는데, 이는 동일한 유형의 스파 이럴 안테나(spiral antenna)에는 없는 특성이다 [4], [5] . 일반 적으로 네 개의 팔을 갖는 시뉴어스 안테나의 입력 임피 던스는 267 Ω으로 기존의 두 개의 팔인 경우보다 188 Ω 보다 높다 [6] .…”

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“…하지 만, 유전 상수(dielectric constant)가 높은 기판을 사용하면 기판 모드(substrate mode)가 생성되고, 고주파 대역에서 안테나 이득이 감소한다 [13] . 최근 [5] 및 저주파 대역의 임피던스 변동을 최소 화하기 위한 gap-loading [16] 을 적용한다. 입력 임피던스 저 감을 위해서, 이전에 연구되었던 병렬 방사체 구조를 시 뉴어스 안테나에 적용한다 [14] .…”

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Ultra-Wideband Cavity-Backed Four-Arm Sinuous Antenna with Low Height and Uniform Gain Characteristics

Kim¹,

Park²,

Kim³

et al. 2021

J. Korean Inst. Electromagn. Eng. Sci.

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In this study, an ultra-wideband cavity-backed four-arm sinuous antenna with low height and wide gain bandwidth is proposed. To reduce the antenna height, a feeding structure is applied with a coaxial bundle and two-port balun. In addition, a multi-layer radio absorber and metallic cavity are applied to obtain certain characteristics, such as a unidirectional radiation pattern, low profile, and stable reflection coefficient. Additionally, a radiator with low input impedance is applied for a wide gain bandwidth. The proposed antenna operates at 0.4～6.0 GHz and has a relatively low height and large gain bandwidth compared to the performance of previously studied antennas.

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Modification of Sinuous Antenna Arms for UWB Radar Applications

Cited by 24 publications

References 8 publications

Review on Ultra-Wideband Phased Array Antennas

Review on Ultra-Wideband Phased Array Antennas

Self Complementary Frequency Independent Triple Band Sinuous Antenna Array for Wireless Applications

Ultra-Wideband Cavity-Backed Four-Arm Sinuous Antenna with Low Height and Uniform Gain Characteristics

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