Multiple-input multiple-output (MIMO) antenna swapping circuit

A multiple-input multiple-output (MIMO) antenna swapping circuit, comprising:

• primary switching circuitry configured to couple at least one first primary multiplexer circuit and at least one second primary multiplexer circuit between a first antenna and a third antenna, the primary switching circuitry comprising:
• a first primary antenna swapping interface;
• a second primary antenna swapping interface;
• and
• one or more primary switches coupled to the first primary antenna swapping interface and the second primary antenna swapping interface;
• and
• secondary switching circuitry configured to couple at least one first secondary multiplexer circuit and at least one second secondary multiplexer circuit between a second antenna and a fourth antenna, the secondary switching circuitry comprising:
• a first secondary antenna swapping interface coupled to the second primary antenna swapping interface via a first conductive medium;
• a second secondary antenna swapping interface coupled to the first primary antenna swapping interface via a second conductive medium;
• and
• one or more secondary switches coupled to the first secondary antenna swapping interface and the second secondary antenna swapping interface;
• wherein the primary switching circuitry is configured to receive and provide an outgoing radio frequency (RF) communication signal to a selected antenna among the first antenna, the second antenna, and the fourth antenna for transmission over an outgoing RF communication link.