Advanced hybrid power amplifier design
AssigneeEricsson Inc.
InventorRobert D. Bartola
Life of this patent
Estimating the term…
Abstract
A hybrid radio frequency (RF) power device is provided which comprises: a flange (10) and an arrangement of die blocks (30) disposed about the flange (10), where the arrangement of die blocks (30) has die blocks (30a-30d) organized in a plurality of rows and a plurality columns, where the device may further comprise a substrate (15) disposed between the flange (10) and the arrangement of die blocks (30), and a first die block (30a) connected to a second die block (30b) by a conductor (42c) having a length of half a wavelength.
Claims9
A hybrid radio frequency (RF) power device comprising:
- a flange;
- an arrangement of die blocks disposed about the flange, said arrangement of die blocks organized in a plurality of rows and a plurality columns, each of said die blocks having corresponding input and output connections;
- a substrate disposed between the flange and said arrangement of die blocks;
- an input pin attached to said flange;
- an input transmission line extending between said input pin and said arrangement of die blocks;
- a first link connecting a first die block via a first input connection to a second die block via a second input connection;
- a second link connecting a third die block via a third input connection to a fourth die block via a fourth input connection;
- a third link coupling said input transmission line to said first link;
- a fourth link coupling said input transmission line to said second link;
- an output pin attached to said flange opposite said input pin;
- and
- an output transmission line extending between corresponding output connections of said first, second, third and fourth die blocks and said output pin;
- wherein said first and second links have a length approximately one half the RF wavelength of the operating wavelength of the power device so that die blocks in a first column of said arrangement are substantially in phase with each other and approximately 180 degrees out of phase with die blocks in a neighboring column of die of said arrangement thereby causing die in the first column to switch ON together and increase the efficiency of the RF power devise.
A hybrid radio frequency (RF) power device comprising:
- a flange;
- and
- a plurality of die predisposed about the flange and arranged into two rows and three columns, each of the die including input connections and output connections;
- a substrate disposed between the flange and the die;
- an input pin coupled to the flange and adapted for carrying a into the power device;
- an input micro strip transmission line for connecting the input pill to the input connections of said die;
- an output pin for carrying a signal from the power device;
- an output micro strip transmission line for connecting the output pin to the output connections of the die;
- and
- links coupling successive input connections of die in neighboring columns, the length of said links being approximately one-half wavelength of the RF operating wavelength of the power device so that die blocks in columns 1 and 3 are in phase and 180 degrees out-of-phase with die blocks in column 2 thereby increasing the efficiency of the RF power device.
Dependencies are inferred from the claim text.