A Compact UWB Monopole Micro-Strip Antenna with a Desirable Band Notch

Abstract:

In this paper, a low-cost compact monopole UWB antenna with variable band notch characteristics is presented. The antenna is complemented on FR4 substrate with the whole size of . And the proposed antenna consists of a radiating patch with two symmetric semiellipse parasitic patches. A U-shaped slot is added to achieve a desired band notch frequency. It is excited by a 50 microstrip-line feed. A partial trapezoid ground plane with two symmetric L-shaped slots and two parasitic patches both can help to obtain higher frequency bandwidth more than 139% (2.8 GHz~15.6 GHz). The substrate with two circular holes can slightly improve the lower frequency characteristic. The simulation of the proposed antenna is achieved by CST Microwave Studio Software.

• Periodical: Applied Mechanics and Materials (Volumes 687-691)
• Pages: 4136-4139
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.687-691.4136
• Online since: November 2014
• Authors: Ben Sheng Qi, Jun Juan Shi
• Keywords: Band-Notched Antenna, Circular Holes, L-Shaped Slot, U-Shaped Slot, UWB Antenna

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