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Crosspolar variations on a satellite-Earth path

Crosspolar variations on a satellite-Earth path

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© The Institution of Electrical Engineers
Published

Abrupt changes in crosspolar phase, in the region of 180°, and associated crosspolar signal nulls have been measured on a 30 GHz satellite–Earth slant path. Unlike previous reports, these changes were not associated with thuderstorm activity. Large differential phase shifts, typically 25°, are seen to be associated with depolarisation events which are unaccompanied by significant copolar attenuation.

Inspec keywords: satellite links; polarisation; radiowave propagation

Other keywords: differential phase shifts; crosspolar phase; copolar attenuation

Subjects: Satellite communication systems; Radiowave propagation

References

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      • P.F. Shutie , J.E. Allnutt , E.G. Mackenzie . Satellite–Earth signal depolarisation at 30GHz in the absence of significant fading. Electron. Lett. , 1 - 2
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      • B.G. Evans , P.T. Thompson . Use of cancellation techniques in the measurement of atmospheric crosspolarisation. Electron. Lett. , 447 - 448
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