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 Posted: Mon Aug 01, 2011 4:42 am    Post subject: Raytheon Develops Miniature Antenna For Unmanned Aircraft Sy Raytheon proudly announced they have developed a miniature antenna for unmanned aircraft. Here's the thing: 1) Raytheon develop an antenna that is about 1" cubed 2) They say it weighs a fraction of an ounce 3) Operates at millimeter wave frequencies Ok, so 1" is 25.4 mm. If the wavelength is mm, why is it difficult to place an antenna in such a volume? In fact, it should be trivial. How is this an advancement? Further, in regards to the weight - antennas can be made from thin foil, so how is this an accomplishment? In summary, this announcement sounds like they did something. But I believe they charged the US government 10-100 million dollars for something a competent antenna engineer could do in a few hours. Am I wrong? I'd love to hear why what they did was difficult. Article reference below. http://avstop.com/news_august_2011/raytheon_develops_miniature_antenna_for_unmanned_aircraft_systems.htm
britny.mark
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 Posted: Sat Nov 16, 2013 11:16 am    Post subject: have a trivial question: in the short dipole (L<
cnmcdee
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Posted: Mon Apr 13, 2015 7:29 pm    Post subject: Re: Raytheon Develops Miniature Antenna For Unmanned Aircraf

 admin wrote: Raytheon proudly announced they have developed a miniature antenna for unmanned aircraft. Here's the thing: 1) Raytheon develop an antenna that is about 1" cubed 2) They say it weighs a fraction of an ounce 3) Operates at millimeter wave frequencies Ok, so 1" is 25.4 mm. If the wavelength is mm, why is it difficult to place an antenna in such a volume? In fact, it should be trivial. How is this an advancement? Further, in regards to the weight - antennas can be made from thin foil, so how is this an accomplishment? In summary, this announcement sounds like they did something. But I believe they charged the US government 10-100 million dollars for something a competent antenna engineer could do in a few hours. Am I wrong? I'd love to hear why what they did was difficult. Article reference below. http://avstop.com/news_august_2011/raytheon_develops_miniature_antenna_for_unmanned_aircraft_systems.htm

"Raytheon's Cooperative Target ID is an electronic "question and answer" Ka band radio technology. Highly directional, it employs low radiated power, encryption, advanced signal processing and spread spectrum techniques for clandestine full-spectrum contingency operations. The technology is designed for ease of use and integration with modern surveillance and targeting systems and can reliably identify equipped friendly forces in less than one second at long ranges and well within the normal target engagement cycle."

- Highly directional in a device that is moving and axis shifting would probably exhibit some phased array capabilities in this little cube. I do not think that is easily engineered in something the size of a quarter.
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