Half duplex mode digital beamforming device

An integrated circuit (IC) chip comprising:

• a transmit section comprising a first digital baseband section and a plurality of first radio frequency (RF) sections, wherein the first digital baseband section includes a first time delay filter and a plurality of first phase shifters, wherein a plurality of transmit signal processing paths are defined in the transmit section, wherein each transmit signal processing path of the plurality of transmit signal processing paths includes a respective first phase shifter of the plurality of first phase shifters and a respective first RF section of the plurality of first RF sections;
• and
• a receive section comprising a plurality of second RF sections and a second digital baseband section, wherein the second digital baseband section includes a second time delay filter and a plurality of second phase shifters, wherein a plurality of receive signal processing paths are defined in the receive section, wherein each receive signal processing path of the plurality of receive signal processing paths includes a respective second phase shifter of the plurality of second phase shifters and a respective second RF section of the plurality of second RF sections,
• wherein the IC chip receives a local oscillator signal from a local oscillator, and wherein the IC chip switches between operation of the transmit section or the receive section using the local oscillator signal.

An apparatus comprising:

• a DBF associated with a first subset of antennas of a phased array antenna, the DBF including a transmit section associated with transmission of a first signal at a first frequency in a transmit mode and a receive section associated with receiving of a second signal at a second frequency in a receive mode, the second frequency being different from the first frequency, wherein the DBF is configured to:
• receive a local oscillator signal having the first frequency from a local oscillator in the transmit mode;
• and
• receive the local oscillator signal having the second frequency from the local oscillator in the receive mode.