Radio frequency transmitter, power combiners and wireless communication unit therefor
First Claim
1. A radio frequency (RF) transmitter, comprising:
- a plurality of power amplifier stages comprising a plurality of paired output terminals, where a pair of output terminals is coupled to a respective amplifier stage;
a power combining arrangement comprising;
a plurality of first paired input terminals,a plurality of second input terminals, such that each input of the first paired input terminals is coupled to the same second input terminal; and
a power transfer circuit operably coupling the second input terminals;
whereina first pair of cross coupled bond wires operably couples a pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the plurality of first paired input terminals of the power combining arrangement; and
a second pair of cross coupled bond wires overlays the first pair of cross coupled bond wires and operably couples a further pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the plurality of first paired input terminals of the power combining arrangement thereby forming a multiple current loop in coupling the plurality of power amplifier stages with the power combining arrangement.
1 Assignment
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Accused Products
Abstract
A radio frequency transmitter includes: power amplifier stages having paired output terminals, where a pair of output terminals is coupled to a respective amplifier stage. A power combining arrangement includes: first paired input terminals, second input terminals, such that each input of the first paired input terminals is coupled to the same second input terminal; and a power transfer circuit coupling the second input terminals. A first pair of cross coupled bond wires couples a pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the first paired input terminals; and a second pair of cross coupled bond wires overlays the first pair of cross coupled bond wires and couples a further pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the first paired input terminals.
9 Citations
20 Claims
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1. A radio frequency (RF) transmitter, comprising:
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a plurality of power amplifier stages comprising a plurality of paired output terminals, where a pair of output terminals is coupled to a respective amplifier stage; a power combining arrangement comprising; a plurality of first paired input terminals, a plurality of second input terminals, such that each input of the first paired input terminals is coupled to the same second input terminal; and a power transfer circuit operably coupling the second input terminals; wherein a first pair of cross coupled bond wires operably couples a pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the plurality of first paired input terminals of the power combining arrangement; and a second pair of cross coupled bond wires overlays the first pair of cross coupled bond wires and operably couples a further pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the plurality of first paired input terminals of the power combining arrangement thereby forming a multiple current loop in coupling the plurality of power amplifier stages with the power combining arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless communication unit comprising a radio frequency (RF) transmitter, comprising:
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a plurality of power amplifier stages comprising a plurality of paired output terminals, where a pair of output terminals is coupled to a respective amplifier stage; a power combining arrangement comprising; a plurality of first paired input terminals, a plurality of second input terminals, such that each input of the first paired input terminals is coupled to the same second input terminal; and a power transfer circuit operably coupling the second input terminals; wherein a first pair of cross coupled bond wires operably couples a pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the plurality of first paired input terminals of the power combining arrangement; and a second pair of cross coupled bond wires overlays the first pair of cross coupled bond wires and operably couples a further pair of amplifier stage output terminals with a different second input terminal via terminals of different pairs of the plurality of first paired input terminals of the power combining arrangement thereby forming a multiple current loop in coupling the plurality of power amplifier stages with the power combining arrangement.
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Specification