Broadband sleeve antenna for portable terminal device
A portable terminal and sleeve antenna technology, applied in the field of antennas, can solve the problems of large size, narrow bandwidth, unsatisfactory, etc., achieve the effect of improving the beautiful structure and solving the problem of multi-antenna interference
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[0041] For the problem of multi-band multi-antenna in the current portable terminal project, a design method of monopole broadband sleeve antenna is proposed. By expanding the loading part of the radiator of the monopole sleeve antenna (helical loading), that is, in the loading helix Add multiple turns of different diameter helixes at different positions, and use the idea of multiple resonance points of the antenna to further expand the bandwidth on the basis of the traditional monopole sleeve antenna. Therefore, the problems of mutual interference of multiple antennas of the portable terminal equipment, the problem of insufficient bandwidth after the antenna is added with a sleeve, the problem of widening the bandwidth with a lossy device, and the problem of excessive size of the antenna are solved.
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