Penta-band WWAN handset antenna embedded in a small notch in the system ground plane

Chu, Fang‐Hsien; Kao, Yu Chen

doi:10.1109/aps.2012.6348484

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…Lately, the method of matching circuit [6][7][8][9][10] and coupled-fed [8][9][10][11][12] were proposed to widen the bandwidth of the antenna. In [6], a small size inverted-F antenna with a metal casing was proposed.…”

Section: Introductionmentioning

confidence: 99%

“…However, these antennas have a larger ground clearance (8-10 mm in length) and the effects of the metal casing are not taken into consideration. In [12], coupled-fed technique and matching circuit were applied to cover two operating bands (824-960 and 1710-2170 MHz). However, the bandwidth of this antenna is not wide enough to cover the entire long-term evolution (LTE) band (1710-2690 MHz).…”

Section: Introductionmentioning

confidence: 99%

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Antenna design for a smartphone with a full metal casing and a narrow frame

Yan

Yang

et al. 2018

IET Microwaves, Antennas & Propagation

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A mobile‐phone antenna with a wideband feed structure (WBFS) and an auxiliary structure for a full metal casing and a very narrow frame are proposed. The most highlight of this proposed antenna is that it provides a method to overcome the difficulties of designing a high‐performance antenna in a full metal casing with a very narrow frame. The WBFS is designed to have a broadband performance. The total size of the antenna is 6 × 48 mm2, and a 6 mm long ground clearance is set on the bottom edge of the system circuit board. The experimental results reveal that a good impendence matching is obtained across the frequency bands of 824–960 and 1710–2690 MHz, and the total efficiency is more than 40%. The antenna maintains a good performance when user's hand(s) is (are) holding it; meanwhile, keeps the specific absorption rate (SAR) under the IEEE Std. C95.1 compliant SAR. In addition, the performance of the proposed antenna in a multi‐antenna system is examined. The result shows that the proposed antenna is a good candidate for a multiple‐input–multiple‐output system.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antenna design for a smartphone with a full metal casing and a narrow frame

Yan

Yang

et al. 2018

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

show abstract

“…The designers need to handle the cross coupling of the antenna and circuit parts with care. Note that, in these cases, the antenna radiation part is usually much smaller than the system ground plane on which the system circuit board is [4][5][6][7][8][9].…”

mentioning

confidence: 99%

System Embedded Antenna for Portable TVWS Cognitive Radio Transceiver

2015

Antennas Wirel. Propag. Lett.

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For a wireless device with an internal antenna that is of similar size as its system circuit, for example, a portable TV white spaces (TVWS) cognitive radio transceiver, arranging the antenna and the system circuit together in a compact space without affecting antenna radiation is a big issue. In this paper, we propose a design methodology using the system circuit itself as the antenna, namely the system embedded antenna (SEA). Radio frequency (RF) chokes are used to segment and shape the system board in terms of the requirements of the antenna for efficient RF radiation. In baseband, the circuit function has no change. The SEA was fabricated, measured and compared with the original antenna without system circuit. The performance of the SEA transceiver was compared with the transceiver having a separated standard 2dBi antenna in an indoor environment. The measurement results show that the SEA has similar performance to its original antenna. The SEA transceiver's performance is comparable to the separated transceiver and antenna. Using this design methodology, the total size of the device can be reduced significantly. More importantly, the antenna radiation pattern is not affected by the system circuit because there are no other circuit parts besides the SEA.

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A Penta-Band Planar Inverted-F Antenna for Mobile Phone Application Using Lc-Tank-Stacked Network

Yang¹,

Huang²,

Jou³

2014

PIER Letters

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Abstract-In this paper, a penta-band antenna design using matching network for mobile phone application is proposed. This design is composed of a planar inverted-F antenna (PIFA) and a LCtank-stacked network. The LC-tank-stacked network consists of two pairs of stacked chip-LC tank, which combine in parallel with the microstrip line feeding to the antenna. The PIFA can excite dual bands, and each pair of chipLC tanks can effectively widen the lower and upper bandwidth, respectively. According to measured results, the bandwidth can cover 824-960 MHz/1710-2170 MHz band for WWAN application (VSWR = 3 : 1). The peak antenna gain is better than 0.5 dBi and 3.4 dBi for lower and upper operating band, respectively. And the measured radiation efficiency is about 40-60% and 40-70% for lower and upper operating band, respectively.

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Penta-band WWAN handset antenna embedded in a small notch in the system ground plane

Cited by 3 publications

References 4 publications

Antenna design for a smartphone with a full metal casing and a narrow frame

Antenna design for a smartphone with a full metal casing and a narrow frame

System Embedded Antenna for Portable TVWS Cognitive Radio Transceiver

A Penta-Band Planar Inverted-F Antenna for Mobile Phone Application Using Lc-Tank-Stacked Network

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