Title :
Multipath and anomalous propagation studies of Ka band emissions using a distributed transmit-receive radio link network experiment
Author :
Hansen, H.J. ; Kulessa, A.S. ; Marwood, W. ; Forrest, M. ; Borg, D. ; Reinhold, O.
Author_Institution :
RFT Group EWRD, DSTO, Edinburgh, SA, Australia
Abstract :
Of increasing interest are the surface level propagation characteristics that influence radio reception in the Ka (26-40 GHz) millimeter wave band. A height-distributed multi-element transmit-receive 35 GHz CW carrier radio link over 10 km has been built and operated in trials in the Spencer Gulf concurrently with atmospheric refractivity profiling instrumentation that provides a full description of the air/sea interface. This paper describes a preliminary analysis of reception measurements associated with a low-height evaporative ducting structure that was present during a pre-noon local time sector recording period. It is shown that the predicted propagation for the ducting structure that is obtained from the atmospheric measurements correlates well with the observed results.
Keywords :
microwave propagation; millimetre wave propagation; radio links; radio receivers; radio reception; radio transmitters; refractive index; Ka millimeter wave band emission; Spencer Gulf; air-sea interface; anomalous propagation studies; atmospheric measurements; atmospheric refractivity; ducting structure; height-distributed multielement transmit-receive CW carrier radio link; low-height evaporative ducting structure; multipath propagation studies; prenoon local time sector recording period; radio reception; reception measurements; surface level propagation characteristics; Aircraft; Atmospheric measurements; Ducts; Equations; Mathematical model; Receivers; Refractive index; distributed radio networks; mm-waves; propagation; radio wave reception; troposphere ducting;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
