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US 12,603,663 B2Granted
Dual-band RF mixer chain using dual-band matching network and shared local oscillator
AssigneeApple Inc.
InventorsHaowei Jiang, Ming-Da Tsai
Life of this patent
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AssigneeApple Inc.
InventorsHaowei Jiang, Ming-Da Tsai
Estimating the term…
This case is directed to supporting LB/LB, LB/MB, LB/HB and MB/HB carrier aggregation while reducing the area consumed on a transceiver and reducing power consumed on the transceiver. In some cases, four supporting such carrier aggregation may include implementing four separate radio frequency mixer chains. However, implementing four separate mixer chains may consume excessive area on the transceiver and may result in excessive transceiver power consumption. By leveraging the fact that HB LO frequency ranges overlap with LB LO frequency ranges, a dual-band gain stage may be implemented such that an LB/HB mixer may share a single LO signal (e.g., so as to provide a dual-band matching network that may provide impedance matching at LB and HB frequencies) without extending an original LB LO signal bandwidth. The dual-band gain stage may reduce space and power consumed on the transceiver while maintaining support for LB/LB, LB/MB, LB/HB and MB/HB carrier aggregation.
A transceiver, comprising:
A method, comprising:
A device, comprising:
Dependencies are inferred from the claim text.