Transformer based switches and systems for PALNA transceivers
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsMikko Varonen, Jan Saijets, Jan Holmberg
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Abstract
An improved transformer based switch for PALNA applications. The transformer based switch having an input single pole port and a circuit with at least one transformer and at least one switch configured to connect portions of the transformer to ground or to short the transformer. The primary side of the transformer being connected to the input port and the secondary side of the transformer being connected to an output port.
Claims20
A Single-Pole Single-Throw (SPST) or Single-Pole Multi-Throw (SPMT) transformer based switch configured to be connected to a power amplifier (PA) and/or Low Noise Amplifier (LNA), said transformer based switch comprising:
- an input single pole port, and
- a circuit comprising:
- a transformer having a primary and secondary winding, wherein one end of the primary winding is connected to the input single pole port and the other end is configured to be connected to a ground potential,
- at least one switch connected at one end to an end of the secondary winding of the transformer, the other end of the at least one switch being either:
- connected to the other end of the secondary winding, or configured to be connected to a ground potential, and
- an output port comprising a first output port connected to one end of the secondary winding of the transformer and a second output port connected to the other end of the secondary winding of the transformer.
Dependencies are inferred from the claim text.