Modal Analysis of a Circular Slot Monopole Antenna for UWB application
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Date
2019-12-18
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Publisher
Universiti Teknologi Malaysia (UTM)
Abstract
In this study, a wideband double slot antenna is introduced. The proposed monopole antenna is designed using the
theory of characteristic mode for slot monopoles. A circular shape is used as the initial design stage, to enhance the
bandwidth, two circular slots are employed. Four modes have been excited to gain a physical insight and to find out which
mode is dominant. The design and analysis were completed utilizing both the time domain and multilayer solver in CST
2017, without considering the feeding port. An antenna model in UWB frequency is constructed. Experimented and
simulated results shows that the proposed planar structure has a wide impedance width with good radiation characteristics.
Description
Keywords
Characteristic modes (CM), UWB antenna, defected ground structure antenna, monopole antenna