Patent ID: 11916514
Assignee: SILICON LABORATORIES INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus, comprising:
a radio-frequency (RF) apparatus; and
a wideband multi-band matching balun using passive components to provide simultaneous balun and impedance matching functionality in multiple bands, the wideband multi-band matching balun comprising:
a multi-band balun, the multi-band balun comprising at least one three-element frequency-dependent resonator (TEFDR); and
a differential-to-differential matching circuit coupled to the RF apparatus that provides impedance matching between the RF apparatus and the multi-band balun, the differential-to-differential matching circuit comprising at least one TEFDR,
wherein the at least one TEFDR in the multi-band balun, the differential-to-differential matching circuit, or both, provides functionality of an inductor having a frequency-dependent inductance or a capacitor having a capacitance having a frequency-dependent capacitance.