A novel symmetrical monopole antenna for dual‐broadband operation

Lin, Cong; Zhang, F.‐S.; Zhao, Gang; Zhang, F.; Song, Yue

doi:10.1002/mop.24235

Cited by 10 publications

(13 citation statements)

References 7 publications

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“…Via iterative trials, finally, the optimal geometrical values for the strips, the feedline, and the ground plane were all obtained and as those denoted in Figure 1. The overall size of the proposed antenna, including the ground plane, is only 20 × 30 mm 2 , which has a size reduction of about 31%, comparing to the reported antenna with the similar function [10].…”

Section: Introductionmentioning

confidence: 83%

“…For this, one interesting candidate seems belong to the planar antenna, especially the printed prototypes. It has been reported that this kind of antenna can be designed as various types such as the inverted-F antennas [1,2], the coplanar waveguide (CPW)-fed antennas [3][4][5][6][7], and the microstripline-fed antennas [8][9][10][11][12][13][14] for broad-or multi-band operation, which is suitable for two multiband wireless communication systems such as 2.4/5.2/5.8 GHz (2.4-2.484/5.15-5.35/5.725-5.825 GHz) wireless local area network (WLAN) and the 2.5, 3.5/5.5 GHz (2.5-2.69, 3.4-3.69/5.25-5.85 GHz) worldwide interoperability for microwave access (WiMAX). However, most of these designs are either complex in antenna structure or large in antenna size for practical applications.…”

Section: Introductionmentioning

confidence: 99%

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Dual-Broadband Twin-Pair Inverted-L Shaped Strip Antenna for Wlan/Wimax Applications

Liu¹,

Dai²

2011

PIER Letters

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Abstract-A simple and novel printed monopole antenna with dual broad operating bands is presented. The antenna fed by a 50-Ω microstrip line is composed by dual twin-pair inverted-L shaped strips as well as a small back truncated ground. By properly selecting widths of these inverted-L shaped stripes, dual broad bandwidths formed from triple resonances to meet the band requirement of the 2.4/5.2/5.8 WLAN or the 2.5(3.5)/5.5 GHz WiMAX standard can be achieved. Experimental results for case of the obtained antenna prototype suitable for use in a 2.4/5.2/5.8 GHz WLAN system have been done and shown good agreement with simulation. Good radiation performances including dual wide bandwidths of 270 MHz and 3.16 GHz, high average antenna gains of ≥ 2.6 and 4.6 dBi, and monopole-like radiation patterns over the two operating bands, respectively, make this antenna a good candidate for use in the modern dual-broadband wireless communication system.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Dual-Broadband Twin-Pair Inverted-L Shaped Strip Antenna for Wlan/Wimax Applications

Liu¹,

Dai²

2011

PIER Letters

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“…Also, the omni-directional radiation characteristics of monopole antenna make them very suitable for indoor applications. In published literature, many configurations of antennas with dual-band operating characteristics have been reported for WLAN applications [5][6][7][8][9][10], such as G-shaped monopole [5,6], double-T monopole [7], split-ring monopole [8], meander line monopole [9,10], and so on. However, among theses designs, most of them are either larger in size or complex in structure for practical applications.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed antenna with microstrip-fed structure is compact, which has a total size of 18 mm × 28 mm × 1 mm. The dualband operation of the proposed antenna is achieved by the dual resonant structures [5][6][7]. By changing related parameters of the introduced structure, dual-band characteristics can been adjusted easily.…”

Section: Introductionmentioning

confidence: 99%

A compact dual band printed monopole antenna for WLAN applications

Bian

Zhang

Yang

et al. 2010

2010 International Symposium on Signals, Systems and Electronics

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In this article, a simple printed monopole antenna for dual-band WLAN applications in IEEE 802.11b/g/a systems is presented. The proposed antenna with microstrip-fed structure is compact, which has a total size of only 18 mm × 28 mm × 1 mm. An experimental prototype has been fabricated and tested. The measured results show good dual-band operations with -10 dB impedance bandwidths of 9.1% and 36.2% centered at 2.43 and 5.55 GHz, respectively, which covers the 2.4/5.2/5.8 GHz WLAN operating bands. In addition, good antenna performances such as radiation patterns and antenna gains over the operating bands have been obtained. Numerical simulation results are in reasonable agreement with measured ones.

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“…The wireless systems that are currently popular are the wireless local area network (WLAN), which operates in the 2.4/5.2/5.8 GHz frequency bands, and the Worldwide Interoperability for Microwave Access (WiMAX) system, which operates in the 2.5/3.5/5.5 GHz frequency bands. Currently, several dual-band and tri-band printed antennas have already been reported [1][2][3][4]. Unfortunately, most of these antennas can only satisfy either the WLAN standards in the 2.4/5.2/ 5.8 GHz bands (2.4-2.484/5.15-5.35/5.725-5.875 GHz) [1,2] or the WiMAX standards in the 2.5/3.5/5.5 GHz bands (2.4-2.6/ 3.3-3.8/5.25-5.85 GHz) [3,4].…”

Section: Introductionmentioning

confidence: 99%

Wideband rectangular ring patch antenna with a three‐pointed‐star strip for WLAN/WiMAX applications

Ren¹,

Yin²,

Zheng³

2011

Micro & Optical Tech Letters

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ground layout [ Fig. (7)] achieves a 15.5 dB gain at 5.2 GHz, similar to that predicted by the circuit simulation. Figure 9 shows the measured, circuit simulated and full-wave simulated noise figure of the LNA. The circuit simulation shows that the dual-band LNA achieves a 3 dB noise figure at both 2.4 and 5.2 GHz. The measured result shows that the noise figure is 4.2 dB at 2.4 GHz and is severely reduced to 6.8 dB at 5.2 GHz. The full-wave simulation shows that the noise figure, using the original ground layout for the LNA, is 5 dB at 5.2 GHz. This is 2 dB worse than the circuit simulation result at the same frequency. With the proposed ground layout, the noise figure is improved from 5 dB to 3.5 dB. This may be attributed to the improved gain as well as the reduced ground resistive element relating to the decreased length of the ground-return path. CONCLUSIONIn this article, the ground layout effect, which significantly affects the gain performance of a CMOS concurrent dual-band LNA operating at 5.2 GHz, is analyzed using a full-wave simulation. As the circuit simulated and measured results show [(Figs. (5) and (9)], the layout effects do not substantially affect the performance of the RF integrated LNA at the 2.4 GHz frequency band. However, as the operating frequency increases to twice the 2.4 GHz frequency, the ground layout effects are no longer negligible, and there is significant deterioration in the performance of the LNA. Based on the analysis, we determine that the parasitic inductance produced by the ground-return path significantly reduces the gain of the LNA at the higher operating frequency band. By decreasing the area of the loop formed by the signal traces and the ground-return path and by placing the ground-return path close to the signal traces, the parasitic inductance is effectively reduced, thus achieving the improved performances of the LNA.

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A novel symmetrical monopole antenna for dual‐broadband operation

Cited by 10 publications

References 7 publications

Dual-Broadband Twin-Pair Inverted-L Shaped Strip Antenna for Wlan/Wimax Applications

Dual-Broadband Twin-Pair Inverted-L Shaped Strip Antenna for Wlan/Wimax Applications

A compact dual band printed monopole antenna for WLAN applications

Wideband rectangular ring patch antenna with a three‐pointed‐star strip for WLAN/WiMAX applications

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