Title :
Microstrip Monopole Antenna With Enhanced Bandwidth Using Defected Ground Structure
Author :
Chiang, Ka Hing ; Tam, Kam Weng
Author_Institution :
Dept. of Electr. & Electron. Eng. of Fac. of Sci. & Technol., Univ. of Macau, Macau
fDate :
6/30/1905 12:00:00 AM
Abstract :
In this letter, a double U-shaped defected ground structure (DGS) is proposed to broaden impedance bandwidth of a microstrip-fed monopole antenna. The antenna structure consists of a simple trapezoid monopole with a DGS microstrip feedline for excitation and impedance bandwidth broadening. Measurement shows that the antenna has 10-dB return loss from 790 to 2060 MHz, yielding 112.4% impedance bandwidth improvement over that of traditional design.
Keywords :
antenna feeds; microstrip antennas; monopole antennas; double U-shaped defected ground structure; frequency 700 MHz to 2060 MHz; impedance bandwidth; trapezoid microstrip fed monopole antenna; Defected ground structure (DGS); impedance bandwidth; monopole;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2008.2005592
