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Moment method analysis of printed single-arm wire spiral antennas using curved segments

Moment method analysis of printed single-arm wire spiral antennas using curved segments

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Single-arm wire spirals printed on grounded dielectric substrates are analysed using a moment method algorithm which uses piecewise sinusoidal subdomain basis and test functions on curved segments, which follow exactly the spiral curvature. Results are compared with those obtained from measurements and with published results using linear segmentation, and it is shown that the curved segment model is accurate and significantly more computationally efficient.

Inspec keywords: spiral antennas; monopole antennas; antenna theory; integral equations; microstrip antennas; wire antennas; method of moments

Other keywords: monopole antennas; printed single-arm wire spiral antennas; antenna theory; piecewise sinusoidal subdomain basis functions; electric field integral equation; moment method algorithm; grounded dielectric substrates; linear segmentation; piecewise sinusoidal subdomain test functions; moment method analysis; measurements; computationally efficient model; curved segment model; spiral curvature

Subjects: Integral equations (numerical analysis); Antenna theory; Single antennas

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