Radio frequency switching circuit
First Claim
1. A radio frequency (RF) switching circuit comprising:
- a conducting module, configured to conduct an RF signal; and
a gate control voltage generating module, configured to provide a gate control voltage for the conducting module to control the conducting module operating at ON-state or OFF-state;
wherein the gate control voltage generating module further comprises;
a first resistance adaptive module, providing a first impedance in a first state for a series branch where the conducting module and the gate control voltage generation module locate, and a second impedance in a second state for the series branch where the conducting module and the gate control voltage generation module locate, wherein the first impedance is greater than the second impedance, the first resistance adaptive module is in the first state when the RF signal operated by the conducting module is a high power signal or the conducting module is turned on, and the first resistance adaptive module is in the second state when the conducting module does not operate the high power signal and the conducting module is turned off.
1 Assignment
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Accused Products
Abstract
a radio frequency (RF) switching circuit, including: a conducting module, configured to conduct an RF signal; a gate control voltage generating module, configured to provide a gate control voltage for the conducting module to control the conducting module operating at ON-state or OFF-state; wherein the gate control voltage generating module further includes: a first resistance adaptive module, providing a first impedance in a first state for a series branch where the conducting module and the gate control voltage generation module locate, and a second impedance in a second state for the series branch where the conducting module and the gate control voltage generation module locate, wherein the first impedance is greater than the second impedance. FOM is improved comprehensively, and Ron, Coff, and a power breakdown performance are optimized, which further improves circuit performance and reduces cost.
17 Citations
14 Claims
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1. A radio frequency (RF) switching circuit comprising:
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a conducting module, configured to conduct an RF signal; and a gate control voltage generating module, configured to provide a gate control voltage for the conducting module to control the conducting module operating at ON-state or OFF-state; wherein the gate control voltage generating module further comprises; a first resistance adaptive module, providing a first impedance in a first state for a series branch where the conducting module and the gate control voltage generation module locate, and a second impedance in a second state for the series branch where the conducting module and the gate control voltage generation module locate, wherein the first impedance is greater than the second impedance, the first resistance adaptive module is in the first state when the RF signal operated by the conducting module is a high power signal or the conducting module is turned on, and the first resistance adaptive module is in the second state when the conducting module does not operate the high power signal and the conducting module is turned off. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification