Apparatus for radio-frequency matching networks and associated methods
AssigneeSilicon Laboratories Inc.
InventorsAttila Zolomy, Christopher L. McCrank
Life of this patent
Estimating the term…
Abstract
A radio-frequency (RF) apparatus includes a wideband receive (RX) impedance matching circuit to provide a received differential RF signal to RF receive circuitry. The wideband RX impedance matching circuit includes first and second inductors to receive the differential RF signal. The wideband RX impedance matching circuit further includes a third inductor coupled across an input o the RF receive circuitry. The third inductor performs the functionality of a capacitor having a negative capacitance value.
Claims20
A radio-frequency (RF) apparatus, comprising:
- a wideband receive (RX) impedance matching circuit to provide a received differential RF signal to RF receive circuitry, the wideband RX impedance matching circuit having a relative bandwidth of 10% to 20%, wherein the wideband RX impedance matching circuit is derived from first and second single-ended matching circuits, the wideband RX impedance matching circuit comprising first and second inductors to receive the differential RF signal, and a third inductor coupled across an input of the RF receive circuitry to substitute for a capacitor having a negative capacitance value.
A method of operating a radio-frequency (RF) apparatus comprising RF receive circuitry, the method comprising using a wideband receive (RX) impedance matching circuit, wherein the wideband RX impedance matching circuit has a relative bandwidth of 10% to 20% and is derived from first and second single-ended matching circuits, the wideband RX impedance matching circuit comprising first and second inductors to match an impedance of a circuit providing a received RF signal to an impedance of the RF receive circuitry, and to provide a differential RF signal to the RF receive circuitry, by using a third inductor coupled across an input o the RF receive circuitry, the third inductor to substitute for capacitor having a negative capacitance value.
Dependencies are inferred from the claim text.