Microstrip Monopole Antenna With Enhanced Bandwidth Using Defected Ground Structure

Microstrip Monopole Antenna With Enhanced Bandwidth Using Defected Ground Structure

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. Measureme...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2008, Vol.7, p.532-535
Hauptverfasser: Chiang, K.H., Tam, K.W.
Format: Artikel
Sprache:eng
Schlagworte:
Antenna feeds
Antenna measurements
Bandwidth
Defected ground structure (DGS)
impedance bandwidth
Impedance matching
Impedance measurement
Metamaterials
Microstrip antennas
monopole
Patch antennas
Periodic structures
Photonic band gap
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Beschreibung
Zusammenfassung: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.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2008.2005592