US 12,395,125 B2
Inductor-capacitor voltage-controlled oscillator with common-mode noise separation
Omar E Elaasar, San Diego, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 22, 2023, as Appl. No. 18/473,033.
Application 18/473,033 is a continuation of application No. 18/472,174, filed on Sep. 21, 2023.
Prior Publication US 2025/0105786 A1, Mar. 27, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H03B 5/12 (2006.01); H04B 1/04 (2006.01); H04B 15/00 (2006.01)
CPC H03B 5/1212 (2013.01) [H03B 5/1228 (2013.01); H04B 1/04 (2013.01); H03B 2200/0088 (2013.01); H04B 15/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
an antenna; and
a voltage-controlled oscillator (VCO) comprising
a first voltage-controlled current source,
a first inductor-capacitor tank circuit coupled to the first voltage-controlled current source,
a first impedance component comprising a resistor, a capacitor, or an inductor tapped onto a first inductor of the first inductor-capacitor tank circuit,
a second inductor-capacitor tank circuit coupled to the first impedance component and configured to inductively couple to the first inductor-capacitor tank circuit, and
a second voltage-controlled current source coupled to the second inductor-capacitor tank circuit and coupled to a ground terminal.