Title :
Internal penta-band monopole antenna with a coupling feed in the laptop computer
Author :
Chang, Chih-Hua ; Wong, Kin-Lu
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung
Abstract :
A shorted monopole antenna with a coupling feed for penta-band WWAN operation has been proposed. The antenna has a simple structure and is promising to be embedded inside the casing of the laptop computer to operate as an internal WWAN antenna. Owing to the coupling feed used in the proposed antenna, a dual-resonance excitation centered at about 1 GHz for the antenna´s lower band and a wide operating band centered at 1.9 GHz for upper band have been obtained. The operating bandwidths of the antenna´s lower and upper bands cover GSM850/900/1800/1900/UMTS operation. Good radiation characteristics for frequencies over the operating bands have also been obtained. The proposed antenna is promising for practical applications as an internal WWAN antenna in the laptop computer.
Keywords :
antenna feeds; antenna radiation patterns; laptop computers; monopole antennas; slot antennas; GSM850/900/1800/1900/UMTS; antenna radiation characteristics; dual-resonance excitation; frequency 1 GHz; frequency 1.9 GHz; internal penta-band monopole antenna; laptop computer; penta-band WWAN operation; 3G mobile communication; Antenna feeds; Antenna measurements; Bandwidth; Computer displays; Computer networks; Dual band; Embedded computing; Frequency; Portable computers;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958576
