Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry
First Claim
1. A buffer circuitry for buffering a radio-frequency (RF) signal, comprising:
- a complementary pair of switches having an input terminal and output terminal, the input terminal of the complementary pair of switches configured to respond to the radio-frequency signal, the output terminal of the complementary pair of switches coupled to an output of the buffer circuitry; and
a power source, including a capacitor coupled to a current source, the power source coupled to the complementary pair of switches, the power source configured to supply power to the complementary pair of switches such that the buffer circuitry supplies a substantially constant power level at its output, wherein the input terminal of the complementary pair of switches receives the radio-frequency signal from a phase-lock loop circuitry coupled to the complementary pair of switches.
1 Assignment
0 Petitions
Accused Products
Abstract
A buffer circuitry buffers a radio-frequency (RF) signal. The buffer circuitry includes a complementary pair of switches and a power source. The a complementary pair of switches has an input terminal and output terminal. The input terminal of the complementary pair of switches responds to the RF signal. The output terminal of the complementary pair of switches couples to an output of the buffer circuitry. The power source includes a capacitor coupled to a current source. The power source couples to the complementary pair of switches. The power source supplies power to the complementary pair of switches in a manner that the buffer circuitry supplies a substantially constant power level at its output.
-
Citations
34 Claims
-
1. A buffer circuitry for buffering a radio-frequency (RF) signal, comprising:
-
a complementary pair of switches having an input terminal and output terminal, the input terminal of the complementary pair of switches configured to respond to the radio-frequency signal, the output terminal of the complementary pair of switches coupled to an output of the buffer circuitry; and a power source, including a capacitor coupled to a current source, the power source coupled to the complementary pair of switches, the power source configured to supply power to the complementary pair of switches such that the buffer circuitry supplies a substantially constant power level at its output, wherein the input terminal of the complementary pair of switches receives the radio-frequency signal from a phase-lock loop circuitry coupled to the complementary pair of switches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A radio-frequency (RF) apparatus, comprising:
a first integrated circuit, including a first buffer, the first buffer comprising; a first switch network configured to accept a first input signal, the first switch network configured to supply a first output signal at a first output; and a power source, comprising a current source coupled to a capacitor, the power source coupled to the first switch network, the power source configured to supply power to the first switch network such tat the first switch network provides a substantially constant power at the first output, wherein the first integrated circuit comprises local-oscillator circuitry, and wherein the first switch network comprises a pair of controllable switches configured to respond to the first input signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
29. A method of buffering a input radio-frequency (RF) input signal to generate a buffered radio-frequency signal, comprising:
-
accepting the radio-frequency signal as an input signal in a switch network; generating the buffered radio-frequency signal at an output of the switch network; supplying power to the switch network by a power source, comprising a current source coupled to a capacitor, so that the switch network has a substantially constant output power, wherein the radio-frequency signal is received from a local-oscillator circuitry, and wherein generating the buffered radio-frequency signal at an output of the switch network comprises using a pair of controllable switches configured to respond to the radio-frequency input signal. - View Dependent Claims (30, 31, 32, 33, 34)
-
Specification