Compact dual‐band slot‐antenna for WLAN applications

Tao, Junwu; Cheng, Chen; Zhu, Hongbo

doi:10.1002/mop.22395

Cited by 25 publications

(23 citation statements)

References 3 publications

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“…Another technique, which involves loading a tuning stub into the open-end of the microstrip-fed line has also been introduced for tuning the impedance bandwidth of the slot antenna [4]. Besides these two techniques (parasitic and loading a tuning stub), the methods of loading a pair of narrow slots [5,6] or large T-shaped [7] and inverted E-shaped [8] slots have also been reported to introduce dualband WLAN operations. Lastly, the technique of loading a narrow slot [9] or a split-ring slot [10] into an annular-slot antenna has also been proposed for dual-frequency operations.…”

Section: Introductionmentioning

confidence: 99%

Compact slot antenna for wireless local area network 2.4/5.2/5.8 GHz applications

Sim

Shih

Chang

2015

IET Microwaves, Antennas & Propagation

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This investigation presents a compact (30 × 30 mm 2 ) microstrip-fed slot antenna design for dualband wireless local area network (2.4 / 5.2 / 5.8 GHz) applications. Two dissimilar inverted L-shaped slots and a mushroom-shaped slot were loaded into the antenna. By feeding these slots with a microstrip-fed line that was analogous to a sling hook, three resonant modes were excited at exactly 2.44, 5.25 and 5.8 GHz, which formed lower and upper operating bands with 10 dB bandwidths of 5.67 and 25.14%, respectively. The process of designing the proposed antenna is explicitly shown, and parametric studies were carried out by simulation. Typical experimental measurements were also conducted and compared with the simulated results.

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Section: Introductionmentioning

confidence: 99%

Compact slot antenna for wireless local area network 2.4/5.2/5.8 GHz applications

Sim

Shih

Chang

2015

IET Microwaves, Antennas & Propagation

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“…At present, many related antenna designs have been reported, such as the F-shaped antenna [1], modified inverted-L antenna [2], double-T antenna [3], Tshaped slot antenna [4], meander monopole antenna [5], and dual-slot antenna [6]. In this article, a novel design of a dual-band monopole antenna with L-shaped strips is proposed.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band monopole antenna with L‐shaped strips for 2.4/5 GHz WLAN applications

Gu¹,

Zhong²,

Xue³

et al. 2008

Micro & Optical Tech Letters

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to adherence issues between the PDMS substrate and copper thin film), higher than expected dielectric loss for PDMS and scattering associated with variations in device dimensions along the length of the experimental structures.The peak in the attenuation constant at 12.0 GHz, as seen in Figure 5, is most likely due to a TE 11 -like mode that is excited near this frequency. Therefore, we can say that, mode-free, quasi-TEM operation is achievable with these structures with an operational bandwidth of around 12 GHz. A traditional coax structure of comparable dimensions has a cutoff frequency of 11.4 GHz. Given the quasi-TEM nature of the structure, it is expected that the 2.5-D MicroCoax can readily operate at higher frequencies, with little or no change in characteristic impedance, when the dimensions are scaled down in a proportionate fashion. CONCLUSIONBy utilizing the vertical dimension, thereby changing the surface area of the center conductor, we can increase the number of basic design parameters without affecting the size of the structure's footprint. We have found the 2.5-D MicroCoax structure to have a number of useful features, such as, a large degree of dispersion and impedance control, and potentially high power-handling capability while providing lower cross-talk between adjacent signal lines due to its inherent shielded construction.In general, nonplanar 3-D structures can offer many advantages over traditional 2-D planar types, such as: less dispersion, lower losses, and lower effective dielectric constant. With the structure described here, by varying the center conductor's height, greater flexibility can be exercised over key design parameters such as the characteristic impedance, phase velocity, and attenuation without having to change the center conductor's width or conductor to ground spacing. As a result, conduction and dielectric losses are minimized; current crowding is reduced while power-handling capability is increased-all without sacrificing single mode operation. DUAL-BAND MONOPOLE

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“…Many UWB [3,4] and dual-band [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] antennas have been reported in the open literature. In [5], a 30 × 35 mm 2 dual-band antenna having a U-shaped open stub is proposed.…”

Section: Introductionmentioning

confidence: 99%

“…In [10][11][12], a printed fork-shaped patch is employed to realize dual-band characteristics for Bluetooth and UWB applications. In [13], a 40 × 32 mm 2 open slot loaded monopole antenna is presented for 2.4-2.5 GHz WLAN and 3-10.6 GHz UWB applications. In [14], a two stepped microstrip feed is used to excite two narrow rectangular slots of different dimensions and placed parallel to each other.…”

Section: Introductionmentioning

confidence: 99%

Design of Asymmetric Slot Antenna With Meandered Narrow Rectangular Slit for Dual Band Applications

Kumar¹,

Naidu²,

Kamble³

2014

PIER B

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Abstract-A compact, coplanar waveguide (CPW) fed asymmetric slot antenna with dual operating bands is proposed. The slot is modified rectangular in shape and asymmetrically cut in the ground plane. A hexagonal patch fed by a two-step CPW is used to excite the slot. The feed itself is slightly asymmetric (shifted, with unequal ground planes). The asymmetric cuts on the slot together with the feed line asymmetry have helped in obtaining ultra wideband impedance matching. An extra resonance at 2.4 GHz for Bluetooth applications is obtained by cutting an additional meandered narrow rectangular shape slit in the ground plane. The prototype of the proposed antenna has been fabricated and tested. The measured 10 dB return loss bandwidth of the proposed antenna is 200 MHz (2.3-2.5 GHz) for the first band and 12.1 GHz (2.9-15.0 GHz) for the second band. The radiation patterns of the proposed antenna are obtained and found to be Omni-directional in H-plane and bi-directional in E-plane. The measured and simulated results are in good agreement.

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Compact dual‐band slot‐antenna for WLAN applications

Cited by 25 publications

References 3 publications

Compact slot antenna for wireless local area network 2.4/5.2/5.8 GHz applications

Compact slot antenna for wireless local area network 2.4/5.2/5.8 GHz applications

Dual‐band monopole antenna with L‐shaped strips for 2.4/5 GHz WLAN applications

Design of Asymmetric Slot Antenna With Meandered Narrow Rectangular Slit for Dual Band Applications

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