US 12,142,810 B2
Compact oscillator device with a cavity resonator on a circuit board
Mikael Hörberg, Torslanda (SE); Jan Sandberg, Frillesås (SE); Daniel Sjöberg, Mölndal (SE); and Niklas Lidström, Heidelberg (DE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/782,282
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Dec. 16, 2019, PCT No. PCT/EP2019/085452
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/121551, PCT Pub. Date Jun. 24, 2021.
Prior Publication US 2023/0009025 A1, Jan. 12, 2023
Int. Cl. H03K 7/06 (2006.01); H01P 7/06 (2006.01); H03B 5/18 (2006.01); H05K 1/11 (2006.01); H05K 1/18 (2006.01)
CPC H01P 7/06 (2013.01) [H03B 5/1817 (2013.01); H03B 5/187 (2013.01); H05K 1/113 (2013.01); H05K 1/115 (2013.01); H05K 1/181 (2013.01); H03B 2200/0014 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An oscillator device comprising:
a circuit board comprising a first main side and a second main side;
an active circuit device mounted to the first main side of the circuit board, the active circuit device comprising an amplifier unit;
a cavity resonator positioned on the second main side of the circuit board; and
at least one excitation via a first connection that runs through the circuit board and electrically connects the active circuit device to an excitation structure inside the cavity resonator.