A compact internal UWB antenna for wireless USB dongle application

Shin, Jaewoong; Hong, Seok-Jin; Choi, Jaehoon

doi:10.1002/mop.23468

Cited by 17 publications

(11 citation statements)

References 6 publications

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“…Therefore, the numerous existing UWB antennas are too large in size to meet the requirements for internal antennas [2][3][4][5][6]. Recently, USB dongle antennas for WLAN [7,8] and UWB [9][10][11][12] applications have been reported and investigated. However, these antennas cannot cover enough bandwidth for both the WLAN and UWB frequency bands with the limited sizes.…”

Section: Introductionmentioning

confidence: 99%

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A Miniaturized Internal Wideband Antenna for Wireless Usb Dongle Application

Gong¹,

Jiao²,

Li³

et al. 2010

PIER Letters

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Abstract-A miniaturized internal wideband antenna suitable for integration with the printed circuit board (PCB) of a wireless universal serial bus (WUSB) dongle is presented in this paper. The proposed antenna mainly consists of a folded metal plate with two sides beveled. By introducing a short-circuited pin connected to the system ground and etching a pair of slots in the bevel sides of the folded metal plate, a large impedance bandwidth from 2.4 GHz to more than 11 GHz is obtained, which easily covers the 2.4 GHz WLAN, WiMAX, S-DMB and UWB frequency bands. The effects of the short-circuited pin and the narrow slots on the impedance matching of the proposed antenna are investigated. The proposed antenna is easy to be fabricated by bending a sample metal plate due to its miniaturized geometry of 5 × 12 × 12.5 mm 3 . Details of the antenna design are described, and experimental results of the constructed prototypes are presented and discussed.

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Section: Introductionmentioning

confidence: 99%

“…The proposed antenna has a smaller size than the ones proposed in [9][10][11] and a lower profile than those in [9,10]. In order to improve the impedance bandwidth with a miniaturized size, the proposed folded antenna has a pair of narrow slots etched in the folded antenna and a shortcircuited pin connected to the system ground plane.…”

Section: Introductionmentioning

confidence: 99%

A Miniaturized Internal Wideband Antenna for Wireless Usb Dongle Application

Gong¹,

Jiao²,

Li³

et al. 2010

PIER Letters

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“…A USB dongle is very adaptable because it can be integrated not only with an antenna, in order to achieve various wireless communications, but also with an existing device, which decreases the necessity for purchasing a new digital device. Reports have been completed for several USB dongle antennas providing various mobile services [2][3][4][5][6][7]. However, due to the large volume and ground size of the reported antennas, it is difficult to accommodate them within the limited space available in the USB dongle.…”

Section: Introductionmentioning

confidence: 99%

A compact modified monopole type internal antenna for wireless USB dongle application

Choi

2009

Micro & Optical Tech Letters

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show, respectively, the HRV of signal detected at À2 dBm, À7 dBm, À12 dBm, À17 dBm, À22 dBm, and À27 dBm. The STD of each of these HRVs is calculated and stated in Table 3. The relative error in the STD of the HRV, between the original signals and the smoothed signals, is 0.65% when the total output power is À2 dBm, 1.27% when the total output power is À7 dBm, 16.15% when the total output power is À12 dBm, 18.5% when the total output power is À17 dBm, 20.33% when the total output power is À22 dBm, and 20.63% when the total output power is À27 dBm. This demonstrates the ability of the proposed system to detect the heartbeat rate and the HRV at power levels as low as À27 dBm. CONCLUSIONAt a distance of 1 m from a 27-years-old person, our system was used with the variation of two parameters: frequency and power. At a total output power of À10 dBm, the heartbeat signal was detected at several frequencies: 2.4 GHz, 5.8 GHz, 10 GHz, 16 GHz, and 60 GHz. As expected, higher sensitivity to small displacements is observed at higher frequencies. Operating at 2.4 GHz, the heartbeat signal was detected at À2 dBm, À7 dBm, À12 dBm, À17 dBm, À22 dBm, and À27 dBm. The ability to detect the heartbeat signal at a distance of 1 m with a total output power of À27 dBm can put forth new safer techniques for both patients and medical staff. For all performed experiments, the heartbeat rate, the HRV, and the STD of the HRV were extracted. Our system shows simplicity in terms of installation and incorporates the ability of tuning both frequency and power.Our future work will focus on determining the optimum frequency for the minimum possible transmitted power.ABSTRACT: Proposed within this document is a compact internal antenna intended for multiband operation. The antenna consists of two-pronged elements with two stubs and has a comparatively small volume of 16 mm Â 5 mm Â 1 mm. The measured return loss of the designed antennas was >10 dB for wireless broadband (WiBro), wireless local area network (WLAN), world interoperability for microwave access (WiMAX), and satellite digital multimedia broadcast (S-DMB) frequency bands. A high-quality radiation pattern and a reasonable antenna efficiency were obtained within the desired frequency band.

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“…Recently, antenna design for ultra-wideband (UWB) systems has attracted increasing interest because of the appealing properties of the new communication standard (3.1-10.6 GHz) released by the Federal Communications Commission (FCC) [1][2][3][4][5]. However, the UWB communication systems use the frequency band, which includes the IEEE802.11a frequency band such as the 5.2-GHz (5150 -5350 MHz) and 5.8-GHz (5725-5825 MHz), which may cause interference with UWB operations.…”

Section: Introductionmentioning

confidence: 99%

“…However, the negative resistance subcircuit consumes too much DC power and occupies large chip size because of the combination of two identical subcircuits. The other subcircuit is cross-coupled topology [3]. Because the virtual ground presented at the common node of differential oscillator, this type belongs to odd-mode oscillation and results in a small output power.…”

Section: Introductionmentioning

confidence: 99%

A compact printed antenna using slot‐type CSRR for 5.2 ghz/5.8 GHz band‐notched UWB application

Lin

Yin

Jie

et al. 2008

Micro & Optical Tech Letters

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2.47 GHz and the dual-band divider proposed in this article are comparable in size. CONCLUSIONIn this article, a dual-band 1:3 series power divider using meander CRLH TLs is proposed. The measured results show that approximately equal power split has been obtained, and the losses are tolerable. The isolation is studied for use in power combinations, and a good improvement has been achieved. Meanwhile, it remains a compact size. This article provides an approach to design divider that is suitable in dual-band systems.

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A compact internal UWB antenna for wireless USB dongle application

Cited by 17 publications

References 6 publications

A Miniaturized Internal Wideband Antenna for Wireless Usb Dongle Application

A Miniaturized Internal Wideband Antenna for Wireless Usb Dongle Application

A compact modified monopole type internal antenna for wireless USB dongle application

A compact printed antenna using slot‐type CSRR for 5.2 ghz/5.8 GHz band‐notched UWB application

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