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A meander-line grid-array antenna specified by an area-reduction factor η is analysed using the method of moments. The antenna is fed from a coaxial line (unbalanced feed) located near the antenna centre. The gain is close to a value roughly estimated by Gref + 10 log10 (1 – η) dBi, where Gref is the gain of the reference grid-array antenna composed of straight wires. It is found that the meander-line grid-array antenna contributes to controlling the HPBW in the H-plane, keeping the HPBW in the E-plane constant. The frequency responses of the input impedance and gain are also presented for η = 0 and 38% with experimental results.
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Nakano et al. (1998) studied this question.
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