Pulse Recirculating Circuit for Efficient High-Power Microwave Generation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Producing high power microwave pulses efficiently is challenging due to the high voltages and high frequencies involved, with existing technologies having low efficiency and requiring costly equipment or large facilities.

Innovation Solution

A high frequency electromagnetic radiation generation device incorporating a high voltage input, nonlinear transmission line, antenna, and pulse recirculating circuit, which includes a diode, low pass filter, and delay line, to recirculate and reradiate electromagnetic pulses, increasing energy efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If traditional klystron systems are used to generate high power microwave pulses, then electromagnetic radiation can be produced, but energy efficiency is low (few percent to 60% efficiency)

Engineering Contradiction:

Improveenergy efficiencyVSAvoidenergy loss

Core Design Contradiction:

Use of energy by moving objectVSLoss of energy

Solution Approach 1:

The pulse recirculating circuit recovers unradiated energy from the antenna and redirects it back through the nonlinear transmission line to generate additional electromagnetic radiation pulses. This recirculation process transforms wasted energy into useful output, achieving energy efficiency exceeding 80% by continuously utilizing energy that would otherwise be lost.

Inventive Principle:

Principle #34Discarding and recovering

2Power

If high voltage inputs greater than 5 kV are used, then high power electromagnetic radiation can be generated, but equipment complexity and cost increase

Engineering Contradiction:

Improvepower outputVSAvoidequipment complexity

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The pulse recirculating circuit enables the system to serve itself by automatically redirecting unradiated energy back into the generation process. This self-utilization of energy reduces the need for additional external energy sources and simplifies the overall system architecture compared to traditional high-power microwave generation equipment.

Inventive Principle:

Principle #25Self-service

3Power

If high voltage inputs greater than 5 kV are used, then high power electromagnetic radiation can be generated, but heat generation and energy loss increase

Engineering Contradiction:

Improvepower outputVSAvoidheat generation

Core Design Contradiction:

PowerVSObject-generated harmful factors

Solution Approach 1:

By recovering and recirculating unradiated energy, the system minimizes energy dissipation as heat. The continuous utilization of energy through multiple recirculation cycles reduces the need to constantly generate new high-voltage pulses, thereby reducing thermal load and heat generation in the system components.

Inventive Principle:

Principle #34Discarding and recovering

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device achieves high energy efficiency by recirculating and reradiating electromagnetic pulses, potentially exceeding 80% efficiency, compared to the few percent to 60% efficiency of traditional klystron systems, while minimizing energy loss and heat generation.

Implementation Method 1

The nonlinear transmission line may include a plurality of circuit elements that include a nonlinear semiconductor junction capacitance device and an inductor

Methodology Applied

Scientific EffectNonlinear semiconductor junction capacitance:

Implementation Method 2

The pulse recirculating circuit may include a diode; a low pass filter; and a delay line

Methodology Applied

Scientific EffectLow pass filtering: Filter (electronic)

Implementation Method 3

a delay line that introduces a delay of less than 500 ns in a pulse traveling through the pulse recirculating circuit

Methodology Applied

Scientific EffectTransmission line delay:

Implementation Method 4

the antenna may electrically coupled with the nonlinear transmission line and/or may radiate electromagnetic radiation at a frequency greater than 100 MHz about a voltage greater than 5 kV

Methodology Applied

Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS20240007052A1Efficient high power microwave generation using recirculating pulses

Publication Date: 2024.01.04 EHT VENTURES LLC

AI summary

A high frequency electromagnetic radiation generation device is disclosed that includes a high voltage input, a nonlinear transmission line, an antenna, and a pulse recirculating circuit. In some embodiments, the high voltage input may be configured to receive electrical pulses having a first peak voltage that is greater than 5 kV, and/or may be electrically coupled with the nonlinear transmission line. The antenna may be electrically coupled with the nonlinear transmission line and/or may radiate electromagnetic radiation at a frequency greater than 100 MHz about a voltage greater than 5 kV. The pulse recirculating may be electrically coupled with the high voltage input and the antenna. The pulse recirculating circuit may include a diode; a low pass filter; and a delay line. In some embodiments, unradiated energy from the antenna is directed through the pulse recirculating circuit to the nonlinear transmission line with a delay of less than 100 ns.