Design and Fabrication of VHF Band Small Antenna Using Composite Right/Left-Handed Transmission Lines

Jun, Hee Jae; Lee, Jong-Hyup; Choi, Seongro; Park, Yong Bae

doi:10.1007/s42835-018-00033-5

Cited by 7 publications

(11 citation statements)

References 12 publications

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“…In our previous work [9], we proposed a CRLH TL-based VHF antenna with operating-frequencies from 159.6 to 164.4 MHz. In this paper, we designed and optimized another CRLH TL-based VHF antenna with the operating frequencies from 249.2-268.2 MHz.…”

Section: Design Of Crlh Transmission Line Antennamentioning

confidence: 99%

“…Meanwhile, there have been many studies on the miniaturization of antennas using the composite right/left-handed (CRLH) transmission line (TL) technique [3][4][5][6][7][8][9][10][11][12][13][14]. CRLH TL is one of the metamaterial-inspired electromagnetic structures which is a composition of right-and left-handed TLs.…”

Section: Introductionmentioning

confidence: 99%

“…The small antennas using the CRLH TL have been investigated mainly in the ultra-high frequency (UHF) band or higher bands. Recently, we proposed a VHF band small antenna using the CRLH TL in [9].…”

Section: Introductionmentioning

confidence: 99%

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Design and Characterization of VHF Band Small Antenna Using CRLH Transmission Line and Non-Foster Matching Circuit

Lee

Choi³

et al. 2020

Applied Sciences

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In this paper, we propose an electrically small antenna consisting of a composite right/left-handed (CRLH) transmission line (TL) and a non-Foster matching circuit. An interdigital capacitor (IDC) and spiral inductor are used to fabricate the very high frequency (VHF) band antenna based on CRLH TL. The size of the proposed antenna is as small as 0.025 × 0.014 × 0.0008 λ at 145.5 MHz using the zeroth-order resonant generated by the CRLH TL. The antenna operation bandwidth is extended by the non-Foster circuit (NFC) consisting of a pair of transistors in a cross-coupled manner. An antenna prototype is fabricated and the input impedance, the received power, and gain of the proposed antenna are measured. The results show that the broadband characteristic is maintained while the form factor is extremely small compared to the wavelength. The average received power enhancement and increased bandwidth of antenna are 17.3 dB and 335.5 MHz (from 249.2–268.2 to 145.5–500 MHz), respectively. The calculated gain of the proposed antenna with the non-Foster is about −45 dBi at 155 MHz. The proposed antenna can be considered as a potential candidate of a low-profile antenna for military ground communications at the VHF band.

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Section: Design Of Crlh Transmission Line Antennamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design and Characterization of VHF Band Small Antenna Using CRLH Transmission Line and Non-Foster Matching Circuit

Lee

Choi³

et al. 2020

Applied Sciences

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“…The CRLH TL antenna in previous studies implemented a series capacitor using the gap between patch and patch [8,9,12,16,19] or IDC (Interdigital Capacitor) [13,15,24,25]. A parallel inductor was implemented by connecting the via [8,9,13,16], spiral inductor [20,24,25], or meander line [6,9,[13][14][15]19] located at the top of the antenna to the ground located at the bottom.…”

Section: Introductionmentioning

confidence: 99%

A VHF Band Small CRLH Antenna Using Double-Sided Meander Lines

Lee

Park

2022

Applied Sciences

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In this paper, a miniaturized very-high frequency (VHF) band antenna using both top and bottom meander lines is proposed. To design a compact size antenna in the VHF band, a Composite Right/Left-Handed (CRLH) transmission line is applied to antenna structure; additionally, both top and bottom meander lines were used to achieve a greater inductance. The CRLH transmission line unit cell operates at 88 MHz, and the fabricated antenna is designed by arranging 7-unit cells. The overall size of the proposed antenna is 0.087λ × 0.02λ × 0.0003λ at the lowest operating frequency, and the antenna operates at 84 MHz. The VSWR 3.5:1 reference operating bandwidth of the antenna is 2%. The received power of the proposed CRLH antenna was measured to verify the antenna performance.

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“…병렬 인덕턴스값을 키우기 위해서는 스파이럴 인덕터, 미앤더 라인의 크기를 키워야 하는데, 이는 안테 나의 물리적인 크기가 커지는 단점이 있다. 이로 인해 대 부분의 CRLH 전송선 기반 안테나 연구는 UHF 대역에서 활발히 진행되고 있으며 [3]∼ [6] , VHF 대역에서의 연구는 부족한 실정이다 [7] . [8], [9] .…”

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CRLH CPW Antenna Using Cuboid Structure for VHF Application

Lee,

Park

2022

J. Korean Inst. Electromagn. Eng. Sci.

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In this study, we propose a composite right/left-handed (CRLH) cuboid antenna operating in the very-high-frequency band. The proposed antenna uses a CRLH transmission-line structure for antenna miniaturization, and the left-handed component is implemented using interdigital capacitors and meander lines. A three-dimensional CRLH antenna was designed to increase the parallel inductance by applying a meander line to the side of the cuboid structure. The proposed antenna operates at 252.5 MHz and has dimensions of 0.12 λ ×0.06 λ×0.02 λ. The antenna has a voltage standing wave ratio of 3.5:1, bandwidth of 2.26 %, and maximum gain of −11.5 dBi.

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Design and Fabrication of VHF Band Small Antenna Using Composite Right/Left-Handed Transmission Lines

Cited by 7 publications

References 12 publications

Design and Characterization of VHF Band Small Antenna Using CRLH Transmission Line and Non-Foster Matching Circuit

Design and Characterization of VHF Band Small Antenna Using CRLH Transmission Line and Non-Foster Matching Circuit

A VHF Band Small CRLH Antenna Using Double-Sided Meander Lines

CRLH CPW Antenna Using Cuboid Structure for VHF Application

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