A small-size internal dual-band metal-strip antenna for 2.4/5 GHz WLAN operation in the laptop computer

2008 ◽  
Author(s):  
Liang-Che Chou ◽  
Kin-Lu Wong ◽  
Cheng-Hao Kuo
Keyword(s):  
Metal Strip ◽  
Dual Band ◽  
Laptop Computer ◽  
5 Ghz

A Novel Pentagonal Shaped Planar Inverted-F Antenna for Defense Applications

2019 ◽  
Vol 12 (2) ◽  
pp. 95-100
Author(s):  
Purnima Sharma ◽  
Akshi Kotecha ◽  
Rama Choudhary ◽  
Partha Pratim Bhattacharya
Keyword(s):  
Mobile Communication ◽  
Satellite Communication ◽  
Dual Band ◽  
Vehicular Communication ◽  
Radio Frequency Field ◽  
Wireless Applications ◽  
High Frequency Structure Simulator ◽  
Low Profile ◽  
Radar Satellite ◽  
5 Ghz

Background: The Planar Inverted-F Antenna (PIFA) is most widely used for wireless communication applications due to its unique properties as low Specific Absorption Rate, low profile geometry and easy fabrication. In literature a number of multiband PIFA designs are available that support various wireless applications in mobile communication, satellite communication and radio frequency field. Methods: In this paper, a miniature sized planar inverted-F antenna has been proposed for dual-band operation. The antenna consists of an asymmetrical pentagonal shaped patch over an FR4 substrate. The overall antenna dimension is 10 × 10 × 3 mm3 and resonates at 5.7 GHz frequency. A modification is done in the patch structure by introducing an asymmetrical pentagon slot. Results: The proposed pentagonal antenna resonates at 5.7 GHz frequency. Further, modified antenna resonates at two bands. The lower band resonates at 5 GHz and having a bandwidth of 1.5 GHz. This band corresponds to C-band, which is suitable for satellite communication. The upper band is at 7.9 GHz with a bandwidth of 500 MHz. Performance parameters such as return loss, VSWR, input impedance and radiation pattern are obtained and analysed using ANSYS High- Frequency Structure Simulator. The radiation patterns obtained are directional, which are suitable for mobile communication. Conclusion: The antenna is compact in size and suitable for radar, satellite and vehicular communication.

A 2.4/5 GHz dual-band voltage-controlled oscillator using switched resonator

2013 ◽  
Author(s):  
Hsuan-ling Kao ◽  
Ping-Che Lee ◽  
Pei-Min Li ◽  
Chih-Sheng Yeh ◽  
Bai-Hong Wei ◽  
...  
Keyword(s):  
Dual Band ◽  
Voltage Controlled Oscillator ◽  
5 Ghz

A dual-band printed dipole antenna for IMT-2000 and 5-GHz WLAN applications

2008 ◽  
Vol 50 (10) ◽  
pp. 2585-2587 ◽  
Author(s):  
Hatem Rmili ◽  
Jean-Marie Floc'h ◽  
Philippes Besnier ◽  
Mohamed Drissi
Keyword(s):  
Dipole Antenna ◽  
Dual Band ◽  
5 Ghz

Evaluation of a dual-band long leaky coaxial cable in the 2.4 and 5 GHz frequency bands for wireless network access

2009 ◽  
Author(s):  
Masayuki Nakamura ◽  
Hideaki Takagi ◽  
Kiyoshi Einaga ◽  
Toshiyuki Nishikawa ◽  
Naoshi Moriyama ◽  
...  
Keyword(s):  
Wireless Network ◽  
Coaxial Cable ◽  
Dual Band ◽  
Network Access ◽  
Frequency Bands ◽  
5 Ghz

A U-matched printed antenna for dual-band WiFi applications

2014 ◽  
Vol 7 (5) ◽  
pp. 551-556 ◽  
Author(s):  
Churng-Jou Tsai ◽  
Bo-Yuan Tsai
Keyword(s):  
High Frequency ◽  
Microstrip Line ◽  
Access Point ◽  
Wireless Access ◽  
Dual Band ◽  
Frequency Bandwidth ◽  
Printed Antenna ◽  
Directional Radiation ◽  
5 Ghz ◽  
And Control

In this paper, a novel and compact center-fed dual-band WiFi printed antenna is presented. This antenna is designed using two different arms which correspond to the oscillation points of the dual band, and uses parasitic capacitance and U-shaped microstrip line to match and control the necessary bandwidth. The measured frequency bandwidth of this antenna is 2.3–2.61 GHz (310 MHz, 12.7%) at 2 GHz, and the high-frequency bandwidth is 4.82–5.84 GHz (1020 MHz, 19.1%) at 5 GHz, which meets the requirements for applications in global WiFi communication. This PCB antenna is double-sided, long, and narrow; its size is 7 × 45.9 × 1 mm3; it can be applied to wireless access point; and it has a near-omni-directional radiation pattern. The design, analysis, and measured results of this proposed antenna will be presented.

Novel compact 2.4/5-GHz dual-band T-slot antenna for WLAN operations

2007 ◽  
Vol 49 (6) ◽  
pp. 1236-1238 ◽  
Author(s):  
Wang Ren ◽  
Zhiguo Shi ◽  
Haiwen Liu ◽  
Kangsheng Chen
Keyword(s):  
Dual Band ◽  
Slot Antenna ◽  
5 Ghz
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