Mobile phone antennas, in your pocket, are a different thing.
Check this out:
Tatsuo Itoh, and Raj Mittra "Analysis of microstrip disk resonator,"
Arch. Eleck. Ubertagung, vol. 21, Nov. 1973 pp. 456-458.
And then the station antenannas need:
Transmit beamforming is commonly used in wireless communication systems,
such as Wi-Fi and 5G, to improve coverage, increase data rates, and
enhance the overall performance of the network.
Ross Finlayson schrieb:
Haven't you already read Rohde's Antenna Design?
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