Qualcomm Incorporated

Foad Arfaei Malekzadeh

Jeremy Darren Dunworth

Jorge Garcia

Shihchieh Chien

A balun circuit includes a first transformer comprising a first inductor and a second inductor, the first inductor having an electrical value different than the second inductor, a second transformer comprising a third inductor and a fourth inductor, the third inductor having an electrical value different than the fourth inductor, the first inductor connected to a positive terminal of a balanced port, the third inductor connected to a negative terminal of the balanced port, the second inductor connected to an unbalanced port and the fourth inductor connected to a node.

Balun having asymmetric inductors and adjustable impedance transformation ratio

Aspects of the present disclosure includes a phase shifter that includes a first meandering transmission line having a first input configured to receive a first input signal and a first output configured to provide a first output signal; and a plurality of switches configured to adjust an effective electrical length of the first meandering transmission line. In some embodiments, a method for processing a millimeter wave communication signal in a phase-array antenna includes determining a phase shift appropriate for the millimeter wave communication signal; determining configuration of a plurality of switches configured to adjust an effective electrical length of a first meandering transmission line configured to receive the millimeter wave communication signal; and setting the plurality of switches.

Growing community of inventors

San Diego, CA, United States of America

Foad Arfaei Malekzadeh