Broadband transmission line transformer
AssigneeBAE Systems Advanced Technologies, Inc.
InventorSimon Y. London
Life of this patent
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Abstract
A broadband transmission line impedance transformer performs impedance transformation with improved frequency response and efficiency across a wide operational bandwidth. In particular, the bandwidth of a transmission line 2:1 impedance transformer may be significantly increased by adding an additional compensating capacitor as an internal component between interconnected transmission lines. This capacitor effectively improves low frequency response for a given length of transmission lines and decreases mismatch in an entire frequency range. The overall bandwidth ratio increases at least twice and mismatch decreases.
Claims5
An broadband transmission line transformer, comprising:
- interconnected transmission lines;
- and
- a compensating capacitor coupled inside the transformer in series between a port of the transformer and a first one of the interconnected transmission lines;
- wherein the compensating capacitor improves low frequency response and decreases mismatch in an entire frequency range and no shunting capacitors are implemented in the transformer.
Dependencies are inferred from the claim text.