An open slot handsets antenna with a capactor and shorting feed for LTE/GPS operation

Hsu, Wen-Hsiu; Pan, Shing‐Tai; Zon-Da, Li; Tang, Chia-Lun

doi:10.1109/apcap.2016.7843135

Cited by 4 publications

(7 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At present, there are already a lot of researches about the miniaturization and multiband of the mobile phone antennas [1][2][3][4][5][6][7][8][9][10][11][12][13]. In order to better achieve miniaturization and multiband, many technologies have been studied.…”

Section: Introductionmentioning

confidence: 99%

Design of an Antenna With Ground Plane Slots for Lte/Wwan Mobile Phones

Huang¹,

Huang²

2019

PIER Letters

View full text Add to dashboard Cite

In this paper, an antenna composed of an inverted L-shaped feeding strip and a shorting strip with three branches for LTE/WWAN mobile phones is presented. With the help of novel ground plane slots, the proposed antenna can realize miniaturization (34 × 15 mm 2) and multiband to cover LTE/WWAN bands. The measured bandwidth (3 : 1 VSWR) of the proposed antenna is 156 MHz (810-966 MHz) at the low band and 1937 MHz (1548-3485 MHz) at the high band. Moreover, the lowest measured radiation efficiency of the fabricated antenna is more than 54% in the whole operation band. The proposed antenna has been successfully fabricated and measured, and there is a good agreement between simulated and measured results.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of an Antenna With Ground Plane Slots for Lte/Wwan Mobile Phones

Huang¹,

Huang²

2019

PIER Letters

View full text Add to dashboard Cite

show abstract

“…It has been shown that the open‐slot antenna is promising to be applied in the metal‐framed slim mobile device such as the smartphone and tablet computer for the LTE (long‐term evolution) operation . The metal frame around the slim mobile device can increase the robustness thereof and can also be used as an extended ground portion of the open‐slot antenna disposed in the system ground plane therein.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is noted that many reported LTE open‐slot antennas disposed along one edge of the mobile device can provide one LTE low band (LB) below 1 GHz and one LTE middle/high band (M/HB, 1710–2690 MHz) only. For the metal‐framed smartphone application, two such open‐slot antennas can be disposed at two (top and bottom) short edges thereof to be applied for the 2 × 2 LTE MIMO (multi‐input multi‐output) operation .…”

Section: Introductionmentioning

confidence: 99%

“…For the 4 × 4 LTE MIMO operation to achieve an even higher channel capacity, which is demanded in some near future smartphones, two additional open‐slot antennas providing two extra LTE LB and/or two LTE M/HB are required. However, owing to very limited space available in the modern smartphone, the presently reported open‐slot antennas are not suitable to be applied for the 4 × 4 LTE MIMO operation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dual‐feed U‐slot antenna having low envelope correlation coefficients for the LTE MIMO operation in the metal‐framed smartphone

Barani

2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A printed dual‐feed U‐shaped open‐slot (U‐slot) antenna disposed close to the top or bottom short edge of the system ground plane in the metal‐framed smartphone for the LTE (long‐term evolution) MIMO (multi‐input multi‐output) operation is presented. The U‐slot is printed in the ground region within 10 mm to the short edge of the system ground plane and its two open ends are disposed at the short edge thereof. The former makes the system ground plane capable of accommodating a large display panel for the smartphone, while the latter decreases the effects of the user's hand holding the smartphone. The U‐slot is short‐circuited at one position therein to provide one longer open slot and one shorter open slot, which are fed separately by two feed networks to form Ant1 and Ant2. Ant1 can cover the LTE low band (LB, 746–960 MHz for Band 13/5/8) and LTE middle/high band (M/HB, 1710–2690 MHz). Ant2 can cover the LTE M/HB in 1710–2690 MHz. In addition, very low envelope correlation coefficients (ECCs) less than 0.1 in the LTE M/HB for Ant1 and Ant2 can be obtained. That is, in addition to the coverage of the LTE LB, the dual‐feed U‐slot antenna can be applied for the 2 × 2 LTE M/HB MIMO operation. The antenna structure and operating principle of the dual‐feed U‐slot antenna are presented, and the antenna performance is verified by the experimental study.

show abstract

“…It required two different feeding ports to cover LTE/WWAN bands. In another study, an open slot was excited by a feedline with a capacitance load . The antenna could only be applied to LTE700/2300/2500 and GPS operations, could not completely cover the LTE/WWAN bands.…”

Section: Introductionmentioning

confidence: 99%

A novel single L‐shaped open slot antenna for octa‐band metal‐framed smartphones

Chen

Jiao

Zhang

et al. 2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A novel single L‐shaped open‐end slot antenna for octa‐band metallic frame smartphones is presented. The antenna mainly comprises an L‐shaped open slot and a simple LC circuit. The slot is placed at the top of the ground plane which is excited by the 50‐Ω feedline with a band‐stop match circuit. According to the proposed feeding arrangement, the antenna can cover all dual‐wideband LTE/WWAN operations at 698‐960 MHz and 1710‐2690 MHz. A prototype antenna is manufactured and tested. Experimental results such as return loss, radiation patterns, and radiation efficiencies are also presented.

show abstract

An open slot handsets antenna with a capactor and shorting feed for LTE/GPS operation

Cited by 4 publications

References 5 publications

Design of an Antenna With Ground Plane Slots for Lte/Wwan Mobile Phones

Design of an Antenna With Ground Plane Slots for Lte/Wwan Mobile Phones

Dual‐feed U‐slot antenna having low envelope correlation coefficients for the LTE MIMO operation in the metal‐framed smartphone

A novel single L‐shaped open slot antenna for octa‐band metal‐framed smartphones

Contact Info

Product

Resources

About