Multimode Multiband (VHF/UHF/L/802.11a/b) Antennas for Broadcasting and Telecommunication Services

Kim, J.; Yang, Choong Jin; Yun, Tae‐Yeoul; Jung, Chang Won

doi:10.1109/lawp.2011.2108253

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…Compared with ref. [16,17,19], the proposed antenna has higher e ciencies. Compared with [18], the proposed antenna has wider bandwidth.…”

Section: Validation E Simulated Model With the Values Of The Variable...mentioning

confidence: 95%

“…e normal mode helix antenna has a slim size [4], but the bandwidth is narrow. Kim et al present a monopole composed of a cylindrical helix and an extendable rod to achieve miniaturization but with the bandwidth of 174-230 MHz that is relatively narrow [19]. Mobile phone antennas have been widely researched, and the techniques of miniaturization and bandwidth broadening are abundant but are not suitable for the applications in the VHF band because the size of mobile phones is small.…”

Section: Introductionmentioning

confidence: 99%

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VHF/UHF Wideband Slim Monopole Antenna with Distributed Matching Structures

Qin

Sun

2022

International Journal of Antennas and Propagation

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This paper presents a wideband monopole antenna with distributed matching structures operating on VHF/UHF bands. The antenna consists of a slim rectangular metal strip with a T-type slot etched on the upper half, two rectangular slots on the lower half, and two rectangular plates soldered with the bottom end of the main strip. The antenna is installed on a metal case which serves as ground. To achieve a wide bandwidth, an impedance matching network consisting of the distributed structures, which are composed of two metal plates and a metal thin strip, is devised and integrated with the main radiating strip. The T-type slot near the top tip of the main strip is used for the miniaturization of the antenna. The proposed antenna is fabricated and measured, and the measured results are in good agreement with the simulated results. The sizes of the proposed antenna and the case are 0.19λmax × 0.014λmax and 0.17λmax × 0.1λmax × 0.034λmax, respectively. The operating bandwidth is from 203.7 to 516.9 MHz (2.54 octaves) with the condition of VSWR ≤ 3 : 1. This antenna has a slim structure, a wide bandwidth covering partially VHF and UHF bands, and omnidirectional radiation patterns, so it can be the candidate for the applications of backpacked radio stations in military communication scenarios.

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“…Compared with ref. [16,17,19], the proposed antenna has higher e ciencies. Compared with [18], the proposed antenna has wider bandwidth.…”

Section: Validation E Simulated Model With the Values Of The Variable...mentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

VHF/UHF Wideband Slim Monopole Antenna with Distributed Matching Structures

Qin

Sun

2022

International Journal of Antennas and Propagation

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“…Points A (A1 and A2) and point C are the shorting points and the feeding point, respectively. For practical mobile handset application, the PIFA is fed using a 50 ohm minicoaxial line at point C. At point B, there is a chip-inductorloaded strip which contributes to a wideband covering the DCS/PCS/UMTS/LTE2300/2500 and WLAN 11.b operation [9][10][11][12][14][15][16]. The chip inductor used in the PIFA has an inductance of 11.5 nH.…”

Section: Antenna Design and Parametric Studymentioning

confidence: 99%

“…In this paper, a compact and low-profile antenna is presented. The proposed design has a wide bandwidth, a reduced size, and a high efficiency [10][11][12][13]. The presented PIFA occupies a small volume of 46 × 19 × 5.5 mm 3 .…”

Section: Introductionmentioning

confidence: 99%

A Novel Dual-Shorting Point PIFA (GSM850 to IMT-A) for Mobile Handsets

Pan

Yang

et al. 2013

International Journal of Antennas and Propagation

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A novel planar inverted-F antenna (PIFA) with dual-shorting points is proposed for multiband mobile handsets. The antenna comprises a meandered strip, a feeding point, two shorting points, and a slotted ground plane. For bandwidth enhancement of DCS/PCS/UMTS/WLAN 11.b/LTE2300/2500 and IMT-Advanced (International Mobile Telecommunications-Advanced), the antenna applies a dual-shorting points design, which generates a multimode between 1707 and 2815 MHz. The proposed antenna has good impedance matching characteristics for GSM (824–960 MHz)/DCS (1710–1880 MHz)/PCS (1850–1990 MHz)/UMTS (1920–2170 MHz)/LTE (2300–2400 MHz, 2500–2690 MHz)/WLAN 11.b (2400–2480 MHz) and IMT-A (4200–4800 MHz). The measured radiation efficiencies of the proposed antenna were all higher than 60% in GSM850/900, DCS/PCS, UMTS, LTE2300/2500, and WLAN 802.11 b, and it is up to 86% in IMT-A.

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“…Moreover, the triangle antenna with a cross-shape inside even covers the third band centered at 3.4 GHz which is useful for WiMAX [10]. Some planar inverted-F antennas (PIFA) have been investigated for WLAN applications [12][13][14][15]. However, those antennas usually use large ground and thick substrate.…”

Section: Introductionmentioning

confidence: 99%

A Compact Dual-Band Patch Antenna for Wlan Applications

Yang¹,

Yan²,

Zhao³

et al. 2011

PIER Letters

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Abstract-A compact dual-band patch antenna is proposed and measured in this paper. The proposed antenna employs a U-shaped slot and two mitered corners to achieve two operating frequency bands, 2.30 ∼ 2.50 GHz and 4.50 ∼ 6.36 GHz, which meet the specifications of IEEE 802.11b/g/a standard for WLAN applications. Full wave analysis is performed to simulate the characteristics of the proposed antenna using CST microwave studio. Moreover, a fabricated prototype which has compact dimensions of 20.0 mm × 25 mm × 1 mm exhibits agreement between measured and simulated parameters and radiation patterns.

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Multimode Multiband (VHF/UHF/L/802.11a/b) Antennas for Broadcasting and Telecommunication Services

Cited by 9 publications

References 8 publications

VHF/UHF Wideband Slim Monopole Antenna with Distributed Matching Structures

VHF/UHF Wideband Slim Monopole Antenna with Distributed Matching Structures

A Novel Dual-Shorting Point PIFA (GSM850 to IMT-A) for Mobile Handsets

A Compact Dual-Band Patch Antenna for Wlan Applications

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