Reflect antenna

An reflect antenna element, comprising:

• (A) a receive antenna section, comprising:
• a receive cavity;
• a receive conductive element in registration with the receive cavity;
• a receive antenna ground plane conductor having an receive slot, such strip conductor being spaced from the receive conductive element, such receive slot being arranged to receive energy in the receive cavity;
• a strip conductor having portions thereof disposed over the receive slot and disposed over the receive ground plane conductor, such strip conductor and underlying receive ground plane conductor forming a microstrip transmission line for coupling energy received by the receive slot from the receive cavity;
• (B) a transmit antenna section, comprising:
• a transmit cavity;
• a transmit conductive element in registration with the transmit cavity;
• a transmit antenna ground plane conductor having a transmit slot, such strip conductor being spaced from the transmit conductive element, such transmit slot being arranged to transmit energy into the transmit cavity;
• a strip conductor having portions thereof disposed over the transmit slot and disposed over the transmit ground plane conductor, such strip conductor and underlying transmit antenna aground plane conductor forming a microstrip transmission line for coupling energy from the transmit slot to the transmit cavity;
• and
• (C) wherein the transmit antenna section and receive antenna section are configured to operate with orthogonal polarizations.

An antenna element comprising:

• a substrate having a receive cavity and a transit cavity formed in laterally spaced regions thereof, the receive cavity having an elongated portion and the transmit cavity having an elongated portion;
• a receive conductive element and a transmit conductive element disposed on the substrate in registration with the receive cavity and the transmit cavity, respectively;
• a ground plane conductor having an receive slot and a transmit slot therein, such strip conductor being spaced from the receive conductive element and the transmit conductive element by portions of the substrate, such receive slot being arranged to receive energy in the receive cavity and the transmit slot being arranged to transmit energy to the transmit cavity;
• a strip conductor having portions thereof disposed over the receive slot and the transmit slot and disposed over the ground plane conductor, such strip conductor and underlying ground plane conductor forming a microstrip transmission line for coupling energy received by the receive slot from the receive cavity to the transmit cavity through the transmit slot;
• and
• wherein the elongated portion of the receive cavity is perpendicular to the elongated portion of the transmit cavity.

An antenna element, comprising:

• (A) a receive antenna section comprising:
• (i) a receive patch conductor disposed on a first portion of a first surface of a first one of a pair of overlying substrates;
• (ii) a receive cavity disposed in a first portion of the first one of the substrates, such receive cavity being in registration with the receive patch conductor, a first inner portion of the first one of the pair of substrates being disposed between the receive cavity and the receive patch conductor, such receive cavity having an elongated portion;
• (iii) a ground plane conductor having an receive slot therein, such receive slot having an entrance for receiving energy in the receive cavity;
• (B) a transmit antenna section comprising:
• (i) a transmit patch conductor disposed on second portion of the fine surface of the first one of the pair of substrates, such second portion of the first surface of the first one of the pair of substrates and the second portion of the first one of the substrates being laterally spaced one from the other along the first surface of the first one of the pair of substrates;
• (ii) a transmit cavity disposed in a second portion of the first one of the substrates, such transmit cavity being in registration with the transmit patch conductor, a second inner portion of the first one of the pair of substrates being disposed between the transit cavity and the transmit patch conductor, such transmit cavity having an elongated portion;
• and
• (iii) wherein the ground plane conductor has a transmit slot therein, such transmit slot having an entrance for transmitting energy into the transmit cavity;
• and
• (C) a strip conductor having portions thereof disposed over the receive slot and the transmit slot and disposed on a surface of a second one of the pair of substrates, such strip conductor, underlying portions of the second one of the pair of substrates, and underlying portions of the ground plane conductor forming a microstrip transmission line for coupling energy received by the receive antenna section to the transmit antenna section;
• and
• (D) wherein elongated portion of the receive cavity is disposed along a first direction and the elongated portion of the transmit cavity is disposed along a second direction, the first direction being perpendicular to the second direction.