Miniaturised broadband top-loaded planar monopole antenna with binary-encoded sleeves

作者：Son Trinh Van; Hwang Keum Cheol^*

来源：Electronics Letters, 2015, 51(13): 968-970.

DOI：10.1049/el.2014.4543

• UHF antennas
• monopole antennas
• broadband antennas
• antenna radiation patterns
• transmission lines
• planar antennas
• genetic algorithms
• miniaturised broadband top-loaded planar monopole antenna
• binary-encoded sleeves
• TLPM antenna
• embedded artificial transmission line
• loss-10 dB
• gain 4
• 11 dB
• frequency 800 MHz to 1265 MHz
• peak gain
• consistent radiation patterns
• GA
• genetic algorithm
• operating bandwidth
• operating frequency reduction

A miniaturised broadband top-loaded planar monopole (TLPM) antenna with binary-encoded sleeves is proposed. The antenna consists of a TLPM with an embedded artificial transmission line to reduce the operating frequency. To broaden the operating bandwidth of the proposed miniaturised monopole antenna, the binary-encoded sleeves are utilised and optimised using a genetic algorithm. A prototype of the proposed antenna is fabricated and tested. The measured -10 dB reflection coefficient bandwidth is 800-1265 MHz (45.04%). A peak gain of 4.11 dBi and consistent radiation patterns are achieved within the operating frequency band.

• 出版日期2015-6-25