In this letter, a microstrip patch antenna using the defected ground structure (DGS) to suppress higher order harmonics is presented. An H-shaped defect on the ground plane with only one or more unit lattices has been utilized and yielded bandstop characteristics. Comparing with a conventional microstrip patch antenna without the DGS unit cell, the radiated power of the DGS patch antenna at harmonic frequencies has been drastically decreased.
- Defected ground structure (DGS)
- Harmonics reduction
- Microstrip atch antenna
ASJC Scopus subject areas
- Electrical and Electronic Engineering