Receiving arrangement for hf signals

Details Receiving arrangement for hf signals Receiving arrangement for hf signals

H - Electricity

01

P

333/68

H01P 5/107 (2006.01)

Patent

CA 1238377

PHN. 11.025 12 ABSTRACT: The invention relates to a receiving arrange- ment 4-1 for SHF signals, comprising a rectangular waveguide filter 5 formed from resonators 10-1 to 10-4 arranged in cascade, a SHF signal arrangement 6 con- taining a microstrip circuit and microstrip to waveguide filter transition connected to this circuit. Generally, such a receiving arrangement is not suitable for use in radiators comprising a partly shown polarization conver- ter 3 with two such receiving arrangements 4-1 each receiving one of two mutually orthogonally polarized signals. When the prior art receiving arrangements are used in these radiators, the channel separation is inadequate. According to the invention, an adequate channel separation is obtained by providing the micro- strip to waveguide filter transition in the waveguide filter and matching the filter 5 thereto. As a result thereof, the receiving arrangement 4-1 becomes more com- pact and has a very low reflection and, in addition, it is no longer necessary to adjust the transition to the waveguide filter 5. Preferably, dimensioning is realized by the choice of the size in the axial direc- tion of the end resonator 10-4 and/or the choice of the dimensions of the coupling aperture which connects the end resonator 10-4 to the adjacent resonator 10-3.

480108

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