# US 2014/0153592 A1 · Directed-energy irradiating apparatus

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- Number: US 2014/0153592 A1
- Document ID: US20140153592A1
- Status: Published application
- Kind: A1
- Application number: 13/908,388
- Filed: 2013-06-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: Mitsubishi Heavy Industries, Ltd.
- Applicants: Mitsubishi Heavy Industries, Ltd.
- Inventors: Shingo NISHIKATA; Yuki UCHIYAMA; Hiroyuki DAIGO; Ryuichi MATSUDA; Shinya ISHII; Hiroki UCHIDA
- Web page: https://patentgrep.com/patent/US20140153592A1

## CPC

- H01S 3/0903: {Free-electron laser}
- F41H 13/005: {the high-energy beam being a laser beam}
- F41H 13/0068: {the high-energy beam being of microwave type, e.g. for causing a heating effect in the target}
- H05H 7/02: Circuits or systems for supplying or feeding radio-frequency energy
- H05H 7/04: Magnet systems {, e.g. undulators, wigglers (free-electron laser H01S3/0903)}; Energisation thereof
- F41H 13/0043: {Directed energy weapons, i.e. devices that direct a beam of high energy content toward a target for incapacitating or destroying the target}
- F41H 13/0075: {the high-energy beam being a radiofrequency beam}
- H05H 2007/022: {Pulsed systems}
- H05H 2007/027: {Microwave systems}
- H05H 2007/041: {for beam bunching, e.g. undulators}
- H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- H05H: PLASMA TECHNIQUE (apparatus or processes specially adapted for producing X-rays H05G2/00); PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS

## Abstract

A directed-energy irradiating apparatus includes an FEL apparatus 20 and an HPM apparatus 30. The FEL apparatus 20 accelerates free electrons by using microwave supplied from a microwave source to irradiate an FEL beam and outputs remaining microwave. The HPM apparatus irradiates an HPM beam generated based on the remaining microwave outputted from the FEL apparatus. It is possible to destroy a target even in a situation that a destruction effect by the FEL beam cannot expected, while maintaining the destruction ability of the FEL beam.

## Claims

### Claim 1

A directed-energy irradiating apparatus comprising:
a microwave source;
a free electron laser (FEL) apparatus configured to receive microwave from said microwave source, accelerate free electrons by using the microwave to irradiate a free electron laser (FEL) beam, generated by using the accelerated free electrons, to targets, and output the remaining microwave; and
a high power microwave (HPM) apparatus configured to irradiate a high power microwave (HPM) beam, generated by using the remaining microwave outputted from said FEL apparatus, to each target.

### Claim 2 (depends on 1)

The directed-energy irradiating apparatus according to claim 1, wherein said FEL apparatus comprises a plurality of accelerators configured to receive parts of the microwave supplied from said microwave source, respectively,
wherein said HPM apparatus comprises a phase synthesizer configured to synthesize phases of remaining microwave parts outputted from said plurality of accelerators as the remaining microwave to produce a phase-synthesized microwave, such that the HPM beam is irradiated to each target by using the phase-synthesized microwave.

### Claim 3 (depends on 2)

The directed-energy irradiating apparatus according to claim 2, wherein said HPM apparatus comprises a pulse compressor configured to pulse-compress the phase-synthesized microwave such that the HPM beam is irradiated to the target by using the pulse-compressed microwave.

### Claim 4 (depends on 1)

The directed-energy irradiating apparatus according to claim 1, wherein said FEL apparatus comprises a plurality of accelerators configured to receive parts of the microwave supplied from said microwave source, respectively,
wherein said HPM apparatus further comprises phase controllers configured to control phases of remaining microwave parts outputted from said plurality of accelerators as the remaining microwave to produce phase-controlled microwave parts, respectively, such that the HPM beam is irradiated by using the phase-controlled microwave parts.

### Claim 5 (depends on 4)

The directed-energy irradiating apparatus according to claim 4, wherein said HPM apparatus comprises a pulse compressor provided for one of said phase controllers to pulse-compress a corresponding one of the remaining microwave parts to output to a corresponding one of said phase controllers.

### Claim 6 (depends on 4)

The directed-energy irradiating apparatus according to claim 4, wherein said HPM apparatus comprises antenna elements provided for said phase controllers to irradiate the HPM beam by using the phase-controlled microwave parts.

### Claim 7 (depends on 1)

The directed-energy irradiating apparatus according to claim 1, further comprising a controller configured to select at least one of the FEL beam and the HPM beam to be irradiated to the target based on external environmental data.

### Claim 8 (depends on 7)

The directed-energy irradiating apparatus according to claim 7, wherein the external environmental data comprises either of weather data, geographic data, and status data of the target.

### Claim 9 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of each target comprises data indicating a platform type or specific type of the target.

### Claim 10 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of each target comprises data indicating a beam spread on the target during irradiating the FEL beam.

### Claim 11 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of each target comprises data indicating a temperature change of the target before and after the irradiation of the FEL beam, and
wherein said controller selects said HPM beam, when a temperature change is equal to or less than a predetermined value.

### Claim 12 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of the target comprises data indicating a speed of the target, and
wherein said controller selects said HPM beam, when the speed is greater than a predetermined value.

### Claim 13 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of each target comprises data indicating the number of the targets, and
wherein said controller selects said HPM beam, when the number of the targets is more than a predetermined value.

### Claim 14 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of the target comprises data indicating a relative speed to the target, and
wherein said controller select one of the FEL beam and the HPM beam, when the relative speed to the target during the irradiation of the other of the FEL beam and the HPM beam is equal to or greater than a predetermined value.

### Claim 15 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of the target comprises data indicating relative positions of the targets or the number of the targets, and
wherein said controller selects one of the FEL beam and the HPM beam, when the number of the targets after the irradiation of the other of the FEL beam and the HPM beam is equal to or greater than a predetermined value, or when the targets are distributed in an area wider than a predetermined area.

### Claim 16 (depends on 8)

The directed-energy irradiating apparatus according to claim 8, wherein the status data of the target comprises data indicating a deceptive means around the target, and
wherein said controller selects one of the FEL beam and the HPM beam based on a kind of the deceptive means of the target.

### Claim 17 (depends on 7)

The directed-energy irradiating apparatus according to claim 7, wherein the external environmental data comprises engagement status of of the targets, and
wherein said controller selects one of the FEL beam and the HPM beam based on the engagement status of the targets after the irradiation of the FEL beam or the HPM beam.

### Claim 18 (depends on 1)

The directed-energy irradiating apparatus according to claim 1, wherein said controller selects one of the FEL beam and the HPM beam in response to command data supplied through an interface in priority to the external environmental data.

### Claim 19 (depends on 1)

The directed-energy irradiating apparatus according to claim 1, wherein said controller selects one of the FEL beam and the HPM beam based on an operation situation of said FEL apparatus or said HPM apparatus, in priority to the external environmental data.
