Creating and sharing knowledge for telecommunications

Ultra Wideband Ring Monopole Miniaturization Using Dielectric Loading Sandwich

Pires, N. ; Moreira, A. A.

Ultra Wideband Ring Monopole Miniaturization Using Dielectric Loading Sandwich, Proc International Workshop on Antenna Technology - IWAT, Santa Monica, United States, Vol. 1, pp. 1 - 4, March, 2009.

Digital Object Identifier:

Download Full text PDF ( 1 MB)

Abstract
A simple miniaturization technique using dielectric loading was applied to the design of Ultra Wideband (UWB) microstrip fed ring monopoles. The method consists of gluing a commercially available substrate layer to each metallization side. Two antenna prototypes were built and tested to validate the concept. The larger prototype covers the whole UWB bandwidth with |S11| < -10dB. The smaller has considerable reduced size, making it suitable for use in a Universal Serial Bus (USB) dongle. The larger structure was further investigated by testing the influence of a close metallic box on antenna matching.