Compact PIFA for 2.4/5 GHz dual ISM-band applications

Moon, Ji Yeon; Sim, Du; Park, Seong‐Ook

doi:10.1049/el:20045286

Cited by 19 publications

(9 citation statements)

References 2 publications

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“…(2) PIFA structures that are electrically smaller and produce a smaller aggregate bandwidth compared to the four slotted PIFAs either because they are smaller, or because they are planar IFAs [10,11,14,15,21], and…”

Section: Comments On Prior Studies and Performance Comparisonmentioning

confidence: 99%

“…Dual-band printed and planar IFAs have drawn significant attention in the existing literature [9][10][11][12][13][14][15][16][17][18][19][20][21]. Starting from legacy applications like PCMCIA cards [9], the use of dualband PIFAs was extended to (i) wireless LAN communication for laptop computers in the 2.4-and 5.2/5.8-GHz bands [11-13, 15, 16, 20], (ii) mobile phone antennas operating at 900/1900 MHz [14], (iii) dual-band communication at 2.6 and 5.5 GHz [17], (iv) mobile phones equipped with WLAN capability operating at DCS/ISM frequencies [18], and (v) dualband antennas printed on USB dongles serving as multiband antennas [19].…”

Section: Introductionmentioning

confidence: 99%

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Compact, Slotted, Printed Antennas for Dual-Band Communication in Future Wireless Sensor Networks

Kakoyiannis

Constantinou

2013

International Journal of Antennas and Propagation

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Inverted-F antennas (IFAs) are a primary choice to implement the radiating system of portable devices. A tried and tested idea can remain topical if proven useful in modern applications. This paper shows that printed IFAs (PIFAs) are capable of forming robust, compact, dual-band radiating systems for wireless microsensors with an adjustable spacing between bands. Reactive tuning was applied by inductively loading the structures with prefractal slots; inductive slot loading degenerates higher-order resonances and increases the fractional bandwidth (FBW). The current distributions revealed that most of the element area is used for radiation at both resonances. In radiation terms, the antennas provide satisfactory gains and high efficiencies (≥82%). A simple figure of merit is used to compare the performance of the three PIFAs head to head. Operation at 2.5 GHz and 5.5 GHz indicated that changes in slot geometry almost double the FBW. The proposed antennas serve both the 5.15–5.35 GHz U-NII and the 5.8 GHz ISM bands; at the lower band, their size is less or equal to the half-wavelength dipole. This study of dual-band antennas also showed that the aggregate FBW of a PIFA is bounded; by degenerating higher-order modes, the designer redistributes whatever bandwidth is available by the antenna itself to the desired bands.

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Section: Comments On Prior Studies and Performance Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact, Slotted, Printed Antennas for Dual-Band Communication in Future Wireless Sensor Networks

Kakoyiannis

Constantinou

2013

International Journal of Antennas and Propagation

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“…That length of strip line corresponds to about a quarter-wavelengths at 2.4 GHz and has three-quarter wavelength at the 5-GHz bands. We use the inverted L-shaped ground plate (part E) here to tune the impedance characteristics, since the antenna performances are greatly influenced by the ground plane [3]. The inverted L-shaped ground plate (part E) plays a dominant role in operating and enhancing the impedance bandwidth, especially at the 5-GHz bands.…”

Section: Antenna Designmentioning

confidence: 99%

A compact printed hook‐shaped monopole antenna for 2.4/5‐GHz wlan applications

Lee¹,

Park²

2005

Micro & Optical Tech Letters

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increases monotonically from about 3.0 to 5.5 dBi for frequencies over the impedance bandwidth. CONCLUSIONA new and simple design of a wideband folded planar metal-plate monopole antenna for application in a UMTS/WiMAX folder-type mobile phone has been proposed, fabricated, and tested. The antenna occupies a compact volume and is promising to be embedded inside the casing of the mobile phone as a wideband internal antenna. In addition, the experimental results indicate that good radiation characteristics over the UMTS and WiMAX bands have been obtained. The impedance matching of the antenna over the operating bandwidth has also been observed to be insensitive to the various possible talking conditions of the folder-type mobile phone.

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“…Recently reported CPW-fed dual-band antennas have simple structures but large size [1][2][3]. A compact planar inverted-F antenna has also been presented but has a complex structure and still a large size [4].…”

Section: Introductionmentioning

confidence: 99%

CPW‐fed compact slot antenna for WLAN operation in a laptop computer

Naser‐Moghadasi

Fakhr

Danideh

2010

Micro & Optical Tech Letters

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A rectangular slot antenna fed by a coplanar waveguide is proposed for dual‐band operations.The measured −10 dB bandwidth for return loss is from 2.05 to 2.65 GHz and 5.1 to 5.4 GHz, covering all the 2.4/5.2 GHz WLAN bands. A multi‐feed 12‐element planar array was designed and simulated. It shows that the features of small size, uniplanar structure, good radiation characteristics, and small mutual coupling are promising for multi‐input multi‐output applications in laptops. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1280–1282, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25198

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Compact PIFA for 2.4/5 GHz dual ISM-band applications

Cited by 19 publications

References 2 publications

Compact, Slotted, Printed Antennas for Dual-Band Communication in Future Wireless Sensor Networks

Compact, Slotted, Printed Antennas for Dual-Band Communication in Future Wireless Sensor Networks

A compact printed hook‐shaped monopole antenna for 2.4/5‐GHz wlan applications

CPW‐fed compact slot antenna for WLAN operation in a laptop computer

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