Broadband Impulse Generator With Synchronized Delay-Line Gating
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Solution Overview
Problem
Existing broadband impulse generators suffer from excessive power consumption due to continuous operation of oscillators and require additional equipment for phase synchronization between local oscillation and envelope signals.
Innovation Solution
A broadband impulse generator design that includes first and second delay lines with delay elements and switches, generating oscillation and envelope signals only during the required impulse duration, synchronized to eliminate phase differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the oscillator continuously operates to generate an LO signal, then the LO signal is always available for impulse signal generation, but power consumption becomes excessive
Solution Approach 1:
The oscillator operates periodically rather than continuously, generating LO signals only during the impulse signal duration. This is achieved by controlling the oscillator to activate simultaneously with the impulse signal generation, ensuring LO signal availability when needed while avoiding continuous operation that would waste power.
2Adaptability or versatility
If the oscillator and envelope signal are generated independently, then signal generation flexibility is maintained, but phase difference occurs requiring additional synchronization equipment
Solution Approach 1:
The oscillator and envelope signal generation are merged into a synchronized operation controlled by the impulse signal duration. Both signals are generated simultaneously and independently maintained during the impulse period, eliminating phase differences without requiring additional synchronization equipment. This approach preserves signal generation flexibility while removing the need for separate phase synchronization components.
Data Source
AI summary
A broadband impulse generator includes a first delay line and a second delay line that receive an input signal and include a plurality of delay elements connected in series with each other, an oscillation signal generator that generates an oscillation signal having a certain number of pulses during a target impulse duration based on the input signal and an output signal of the first delay line, an envelope signal generator that generates a plurality of envelope signals having a delay duration with each other and having a certain voltage level during the target impulse duration, based on the input signal and an output signal of the second delay line, and an impulse signal generator that generates an impulse signal having the certain number of pulses during the target impulse duration based on the plurality of impulse signals and the oscillation signal.