US 12,224,783 B2
Broadband active coupling method and device
Yuriy Greshishchev, Ottawa (CA); and Aravinthan Vigneswaran, Ottawa (CA)
Assigned to Ciena Corporation, Hanover, MD (US)
Filed by Ciena Corporation, Hanover, MD (US)
Filed on Jan. 28, 2022, as Appl. No. 17/586,906.
Prior Publication US 2023/0246660 A1, Aug. 3, 2023
Int. Cl. H04B 1/04 (2006.01); H03F 1/26 (2006.01); H03F 3/195 (2006.01); H04B 1/18 (2006.01)
CPC H04B 1/0483 (2013.01) [H03F 1/26 (2013.01); H03F 3/195 (2013.01); H04B 1/18 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01); H04B 2001/0491 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A broadband active coupling circuit comprising:
a high-pass circuit configured to provide a high frequency response for a broadband signal; and
a low-pass circuit connected in parallel with the high-pass circuit, the low-pass circuit configured to provide a low frequency response for the broadband signal,
wherein the low-pass circuit includes an active circuit configured to not impact the high frequency response provided by the high-pass circuit.