Antenna design using computational electromagnetics

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In spite of uncertainties in the communications industry in recent years, no doubt there will be continued technology development to provide diverse services that require higher data rates and allow user mobility. Mobility means that antennas will continue to be key components. Service diversity will mean that a single antenna structure might have to provide slightly different characteristics for each of a number of roles. This implies multiple polarisations and beamports, as well as electronically controllable beam characteristics with embedded intelligence. Increased data rates demand antennas with wider operating frequency bands, and so spectrum has been allocated at millimetrewave frequencies. There will have to be significant advances in antenna configurations and methods for their design to ensure the success of future systems. The antennas must satisfy more demanding requirements, yet at a cost suitable for commercial applications. The applicant is investigating antenna configurations for both terrestrial and satellite applications, and methods for their computer-aided design, with the above-mentioned tougher requirements in mind.