Title :
Antennas for WiFi Connectivity
Author :
Chen, By Zhi Ning ; Qing, Xianming ; See, Terence Shie Ping ; Toh, Wee Kian
Author_Institution :
Inst. for Infocomm Res., Agency for Sci., Technol. & Res. (A*STAR), Singapore, Singapore
fDate :
7/1/2012 12:00:00 AM
Abstract :
Wireless fidelity (WiFi) is a superset of the IEEE 802.11 standards for communications over several tens of meters. A WiFi device connects to the network via an access point. The design of commercial WiFi antennas is a compromise between cost, size, manufacturability, and performance. This paper describes the design considerations of antenna from a WiFi system perspective with state-of-the-art solutions. The omnidirectional and multiband antenna solutions with diversity characteristics, particularly for access points and portable devices, are discussed. Case studies of a compact multiband antenna with omnidirectional coverage for access point application and a dual-band antenna system for portable devices are presented.
Keywords :
UHF antennas; diversity reception; microwave antennas; multifrequency antennas; omnidirectional antennas; wireless LAN; IEEE 802.11 standard; WiFi antenna; WiFi connectivity; antenna design consideration; multiband antenna; omnidirectional antenna; portable device; wireless fidelity; Antenna arrays; Antenna measurements; Antenna radiation patterns; Dipole antennas; IEEE 802.11 Standards; MIMO; Wireless LAN; Access point; diversity; industrial, scientific, and medical (ISM) band; multiband; multiple-input–multiple-output (MIMO); portable device; wireless fidelity (WiFi); wireless local area network;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/JPROC.2012.2183830
