Featured Research

from universities, journals, and other organizations

New Air Force Magnetron May Help Defeat Enemy Electronics

Date:
September 17, 2009
Source:
Air Force Office of Scientific Research
Summary:
Researchers funded by the US Air Force Office of Scientific Research have invented a new type of magnetron that may be used to defeat enemy electronics. A magnetron is type of vacuum tube used as the frequency source in microwave ovens, radar systems and other high-power microwave circuits.

Researchers funded by the Air Force Office of Scientific Research (AFOSR) at the University of Michigan invented a new type of magnetron that may be used to defeat enemy electronics.
Credit: Photo courtesy of the University of Michigan and the Air Force Research Laboratory

Researchers funded by the Air Force Office of Scientific Research (AFOSR) at the University of Michigan invented a new type of magnetron that may be used to defeat enemy electronics. A magnetron is a type of vacuum tube used as the frequency source in microwave ovens, radar systems and other high-power microwave circuits.

Related Articles


According to Dr. Ron Gilgenbach, an AFOSR-sponsored researcher at the University of Michigan, a new class of magnetrons was invented that holds the potential for more compact Department of Defense microwave sources with faster start-up, as well as higher peak and average power.

"This invention should make it possible to develop more compact magnetrons that operate at higher power and higher frequencies," said Gilgenbach. "Higher power magnetrons could be utilized to jam and defeat enemy electronics."

The magnetron has been vital to military radar systems since World War II. Over time the basic design of the magnetron has not changed much. However, the University of Michigan researchers have revolutionized the design of both conventional and inverted magnetrons by expanding the cathode (negatively charged electrode) and anode (positively charged electrode) area into a new type of magnetron, which permits higher current and a larger area for heat dissipation in a more compact device.

This research has a significant impact on the Air Force's radar capabilities. The newly invented magnetron's higher frequencies have the potential to improve radar resolution. Additionally, the more compact packaging of the new magnetron could encourage airborne applications.

"This invention exploits some plasma physics principles that have been applied to this problem as well as an innovative, new geometry to overcome the physical limitations of conventional magnetrons," said Gilgenbach. "The vision is to explore both a high power version of the magnetron invention and a separate higher frequency (mm wave) embodiment."

AFOSR has been funding the research that led to this invention under the program direction of Dr. Robert Barker, Physics and Electronics program manager. Dr. Barker speaks highly of the University of Michigan-led team, which includes co-inventors: R.M. Gilgenbach (UM), Y.Y. Lau (UM), Brad Hoff (formerly UM, currently at AFRL), David French (UM), and John Luginsland (NumerEx).

"The Michigan group led by Profs. Gilgenbach and Lau has long been a mainstay of AFOSR's high power microwave (HPM) research team," said Barker. "Not only is it internationally recognized for its scientific accomplishments as exemplified by this new invention, but this Michigan group also serves as an example for the rest of the university community. It has established active collaborations with AFRL counterparts and provided a steady stream of graduates to staff the ranks of the Air Force's HPM research and development establishment."


Story Source:

The above story is based on materials provided by Air Force Office of Scientific Research. Note: Materials may be edited for content and length.


Cite This Page:

Air Force Office of Scientific Research. "New Air Force Magnetron May Help Defeat Enemy Electronics." ScienceDaily. ScienceDaily, 17 September 2009. <www.sciencedaily.com/releases/2009/09/090916153131.htm>.
Air Force Office of Scientific Research. (2009, September 17). New Air Force Magnetron May Help Defeat Enemy Electronics. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2009/09/090916153131.htm
Air Force Office of Scientific Research. "New Air Force Magnetron May Help Defeat Enemy Electronics." ScienceDaily. www.sciencedaily.com/releases/2009/09/090916153131.htm (accessed December 22, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, December 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Touch-Free Smart Phone Empowers Mobility-Impaired

Touch-Free Smart Phone Empowers Mobility-Impaired

Reuters - Innovations Video Online (Dec. 21, 2014) A touch-free phone developed in Israel enables the mobility-impaired to operate smart phones with just a movement of the head. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Building Google Into Cars

Building Google Into Cars

Reuters - Business Video Online (Dec. 19, 2014) Google's next Android version could become the standard that'll power your vehicle's entertainment and navigation features, Reuters has learned. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
AP Review: Nikon D750 and GoPro Hero 4

AP Review: Nikon D750 and GoPro Hero 4

AP (Dec. 19, 2014) What to buy an experienced photographer or video shooter? There is some strong gear on the market from Nikon and GoPro. The AP's Ron Harris takes a closer look. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Obama: Better Ways to Create Jobs Than Keystone Pipeline

Obama: Better Ways to Create Jobs Than Keystone Pipeline

AFP (Dec. 19, 2014) US President Barack Obama says that construction of the Keystone pipeline would have 'very little impact' on US gas prices and believes there are 'more direct ways' to create construction jobs. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins