Apparatus for Radio-Frequency Matching Networks and Associated Methods
AssigneeSilicon Laboratories Inc.
InventorsAttila Zolomy, Christopher L. McCrank
Life of this patent
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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, wherein the wideband RX impedance matching circuit comprises first and second inductors to receive the differential RF signal, and a third inductor coupled across an input of the RF receive circuitry, the third inductor performing the functionality of 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 to match an impedance of a circuit providing a received RF signal to an impedance of the RF receive circuitry, by using an inductor coupled across an input o the RF receive circuitry, the inductor performing the functionality of a capacitor having a negative capacitance value.
A method of designing an impedance matching circuit, the method comprising:
- designing a single-ended receive (RX) impedance matching circuit comprising at least one capacitor having a negative capacitance value;
- and
- replacing the at least one capacitor with an inductor.
Dependencies are inferred from the claim text.