Low-Cost, Direct-Fed Slot Antenna Built in Metal Cover of Notebook Computer for 2.4-/5.2-/5.8-GHz WLAN Operation

作者：Lee Cheng Tse; Su Saou Wen^*; Chen Shu Chuan; Fu Chen Shuo

来源：IEEE Transactions on Antennas and Propagation, 2017, 65(5): 2677-2682.

DOI：10.1109/TAP.2017.2679070

• Integrated antennas
• notebook computer antennas
• slot antennas
• triband antennas
• wireless local area network (WLAN) antennas

The slot antenna has been utilized for some recent notebook computers on the market. The FR4 substrates are usually required to print the metal patterns for coupled-feeding the 2.4 GHz (2400-2484 MHz) slot and also for contributing the 5.2 GHz (5150-5350 MHz) and 5.8 GHz (5725-5825 MHz) bands. This communication presents a simple, direct-fed slot antenna with a low profile of 7 mm to the top edge of the metal cover for 2.4-/5.2-/5.8-GHz WLAN operation. The antenna design did not require any substrate and can be implemented directly in the metal cover of a notebook computer at low cost. The design comprised two parallel-connected, 0.5-wavelength-slot portions, formed in a linear structure of length 79 mm and constant width 2 mm, and fed by a common antenna feed port using a minicoaxial cable. The larger slot generated a 0.5-wavelength resonant mode in the 2.4-GHz band and a 1-wavelength mode for 5.2-GHz operation. The smaller slot operated in a 0.5-wavelength resonant mode, which covered the 5.8-GHz band. With a matching inductor properly set in the slot, good input impedance over the 2.4-, 5.2-, and 5.8-GHz bands can be attained.

• 出版日期2017-5
• 单位中国人民解放军国防大学