Amplification apparatus
AssigneeFujitsu Limited
InventorToru Maniwa
Life of this patent
Estimating the term…
Abstract
A first amplification section and a second amplification section included in an amplification apparatus amplify two constant amplitude signals generated by vector decomposition. An impedance inverting circuit inverts the impedance of the signal amplified by the second amplification section. A combining circuit corrects the phases of the signal amplified by the first amplification section and the signal whose impedance is inverted by the impedance inverting circuit, and combines and outputs these signals. The combining circuit includes a line which is (λ/4)+γ in length and which is an asymmetrical circuit element and a line which is (λ/4)−δ in length and which is an asymmetrical circuit element.
Claims8
An amplification apparatus for generating two constant amplitude signals from an input signal by vector decomposition and amplifying the two constant amplitude signals, the apparatus comprising:
- a first amplification section which amplifies a first signal obtained by the vector decomposition;
- a second amplification section which amplifies a second signal obtained by the vector decomposition;
- an impedance inverting circuit which inverts impedance of the second signal amplified by the second amplification section;
- and
- a combining circuit which corrects a phase of the first signal amplified by the first amplification section and a phase of the second signal whose impedance is inverted by the impedance inverting circuit and which combines and outputs the first signal and the second signal, the combining circuit being implemented via transmission lines with a tetragon configuration;
- the combining circuit including asymmetrical circuit elements or the asymmetrical circuit elements being inserted between the first amplification section or the second amplification section and the combining circuit.
Dependencies are inferred from the claim text.