Printed, multi‐loop‐antenna system integrated into a concurrent, dual‐WLAN‐band access point

Su, Saou‐Wen; Hong, Tzi‐Chieh

doi:10.1002/mop.25736

Cited by 8 publications

(8 citation statements)

References 6 publications

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“…Two current nulls, denoted as a cross in the figure, are seen in the middle of the inverted-U-shaped loop above the coupling strip and on the antenna ground below the feed port. This behavior suggests that the inverted-U-shaped loop in combination with its image currents on the antenna ground exhibit a self-balanced, one-wavelength loop resonance [6][7][8][9][10][11]. Thus, the 2.4 GHz loop in this design can offer the self-isolated properties [3,4] when more than two of the said loops are employed in the multiple antenna system.…”

Section: Experimental and Simulation Resultsmentioning

confidence: 99%

Compact, Self-Isolated 2.4/5-GHZ Wlan Antenna for Notebook Computer Applications

Wan¹,

Su²

2019

PIER M

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A simple and compact, self-isolated printed antenna able to operate in the 2.4 GHz (2400-2484 MHz) and 5 GHz (5150-5825 MHz) wireless local area network (WLAN) bands in notebook computers is introduced. The design is built on a low-cost substrate with the dimensions 6 mm × 30 mm (about 0.05λ×0.24λ at 2.4 GHz) and comprises a symmetrical coupled-fed loop and two parasitic shorted strips. For size reduction, the 2.4 GHz loop is loaded with a pair of L-shaped stubs above the feeding and coupling T strip. The parasitic strips shorted on both sides of the coupling T strip are further added to generate the 5 GHz band resonance. The results show that good radiation characteristics can be obtained in the bands of interest. In addition, when grouping three proposed designs with a gap of 4 mm between them, the results for each antenna impedance bandwidth, the isolation between any two of the three designs, and the envelope correlation coefficient (ECC) are also satisfactory.

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Section: Experimental and Simulation Resultsmentioning

confidence: 99%

Compact, Self-Isolated 2.4/5-GHZ Wlan Antenna for Notebook Computer Applications

Wan¹,

Su²

2019

PIER M

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“…Loop and folded loop antennas have been favorable to applications in WLAN access points [16][17][18][19][20][21][22] and mobile phones [23][24][25][26][27] owing to their self-balanced structure of one-wavelength loops [16][17][18][19][20][21][22] and offering multi-resonant modes [23][24][25][26]. These loop antennas mainly operate at their half-, one-, and one-half-wavelength resonant modes, which make them larger than those quarter-wavelength antennas [1][2][3][4][5][6][7][8][9][10][11][12] and can not meet the size requirement as mentioned.…”

Section: Introductionmentioning

confidence: 99%

Capacitor-Inductor-Loaded, Small-Sized Loop Antenna for Wlan Notebook Computers

Su¹

2018

PIER M

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Abstract-A small-sized loop antenna loaded with the series-connected capacitor and inductor for wireless local area network (WLAN) operation is proposed. The main radiator of an L-shaped, loop structure and its small ground were constructed on a single-layered FR4 substrate of thickness 0.8 mm and occupied a miniature size of 5 mm × 20 mm only. It was found that by loading the series-connected capacitor and inductor between the antenna feed port and the loop radiator, the quarter-wavelength loop resonance can be easily excited together with the controllable half-wavelength resonance. The design prototype was able to operate in the 2.4-GHz (2400-2484 MHz) and 5.8-GHz (5725-5825 MHz) WLAN bands. The proposed antenna was simple in structure and yet provided dual-band operation and good radiation performance.

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“…Multiantenna designs have been favorable to applications in the wireless local area network (WLAN) environment. To have more efficient spectrum usage, the multiantenna designs with concurrent dual-band operation in the 2.4 (2400-2484 MHz) and 5 GHz (5150-5825 MHz) bands have received much attention [1][2][3][4][5][6][7][8], especially for the use of access points [3,[5][6][7][8]. In this case, two single-band antennas, one operating in the 2.4 GHz band and the other for 5 GHz operation, are often paired and skillfully designed.…”

Section: Introductionmentioning

confidence: 99%

Compact four‐loop‐antenna system for concurrent, 2.4‐ and 5‐GHz WLAN operation

2013

Micro & Optical Tech Letters

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mated GVD (considering already its sign) as function of the real one. The inset shows the difference between P2 and P1 as function of the GVD, from which the sign is extracted.With this technique it was possible to determine the signal GVD in a range of [260,60] ps/nm with a maximum error of 17 ps/nm. However, as the GVD gets higher (| GVD | > 15 ps/ nm) this error decreases drastically to 3 ps/nm. CONCLUSIONIn this work, we have presented a technique that is able to monitor the GVD of a signal modulated at 40 Gbit/s. It has been experimentally verified that the GVD in the range of approximately [260, 60] ps/nm is measurable through this technique. This operational range is higher than the dispersion limit for 40 Gbit/s signals, showing by this way that is adequate for the monitoring of this type of networks.ACKNOWLEDGMENT

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Printed, multi‐loop‐antenna system integrated into a concurrent, dual‐WLAN‐band access point

Cited by 8 publications

References 6 publications

Compact, Self-Isolated 2.4/5-GHZ Wlan Antenna for Notebook Computer Applications

Compact, Self-Isolated 2.4/5-GHZ Wlan Antenna for Notebook Computer Applications

Capacitor-Inductor-Loaded, Small-Sized Loop Antenna for Wlan Notebook Computers

Compact four‐loop‐antenna system for concurrent, 2.4‐ and 5‐GHz WLAN operation

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