Complete outdoor radio unit for LMDS

A complete outdoor radio unit for the Local Multipoint Distribution Service having a transceiver adapted for mounting to a housing at a rear side of a dish antenna, the transceiver comprising:

• a) a transmitter and a receiver operable to transmit and receive radio waves in the millimeter wavelength portion of the electromagnetic spectrum;
• b) a heat sink having a planar inner surface with gold plated copper and an outer surface having fins, the heat sink forming a housing rear wall and being adapted for attachment to a housing at a rear side of a dish antenna in order to form an air tight and waterproof transceiver enclosure;
• c) a power supply printed circuit board having a top surface with the power supply circuitry of said transceiver mounted thereon and a bottom surface defining a ground plane, the bottom surface being attached directly to said heat sink;
• d) an L-band microwave printed circuit board having a top surface with microwave intermediate frequency circuitry mounted thereon and a bottom surface defining a ground plane, the bottom surface being attached directly to said heat sink;
• e) a thermally and electrically conductive plate defining a millimeter ground plane, the millimeter ground plane being attached directly to said heat sink;
• and
• f) a millimeter microwave printed circuit board having a top surface with microwave circuitry operable in the millimeter wavelength band mounted thereon and a bottom surface defining a ground plane, the bottom surface being directly attached to said millimeter ground plane, whereby said transceiver has a substantially planar configuration with all of said printed circuit boards connected to said heat sink by thermally conductive paths for effective heat transfer.