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Multi-Layer Dielectric Cavity Antennas with Extended Aperture Height
Kook Joo LEE Moonil KIM Jung Aun LEE Sanggeun JEON
IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
cavity antenna, dielectric resonator, multi-layer substrate,
Full Text: PDF(365.1KB)>>
A dominant-mode rectangular cavity antenna design yielding an improved bandwidth is experimentally verified. Simple field theories indicate that extending the aperture height should increase the antenna bandwidth without shifting the operation frequency. Antenna samples built from a 4.4 dielectric constant material produce 3-dB efficiency bandwidths of 15 and 23 percent for the respective cavity height-to-width ratios of 0.5 and 0.75 at 7 GHz.