Submit your abstract now, deadline extended for the '13 IEEE Intl. Symposium on Phased Array Systems & Technology

During recent decades, phased array systems have made major steps forward with the development of many major radar and communications systems. due to many recent advances, including MMIC, photonics, and digital beamforming, phased array systems and technology continue to progress rapidly. Current and future developments of ground-based, sea-based, airborne, and space-based phased array radar, communications, and other electronic systems will be discussed at this international symposium.

Phased Array 2013, the 5th IEEE international symposium presenting advanced in phased array systems and technologies, will be held at the Westin Hotel, Waltham, Massachusetts on Boston’s famous Route 128.

Poster Presentations

Student Paper Competition

Special Sessions

For more info or to register go here.

Teko Shielded RF Enclosures

Surprisingly enough, it's tough to find shielded RF enclosures at low costs that you can solder to.  My suspicion is that these are typically purpose built for whatever product they go into.

I found one company that offers such enclosures (eg RF Boxes), with shielded sub compartments: Teko
http://www.tekoenclosures.com/enclosures/rf-boxes.htm

In my 6/10m SSB/CW transceiver project i used three of these RF boxes for VHF bandpass and low pass filters.  The boxes i used were Teko Part numbers 372.16 and the 373.16.

Teko will also sample boxes for your application.  I'm a big fan and just wanted to get this info out into the community because i'm sure others are seeking such enclosures for their projects.

Deadline extended to 2/1/13, for the IEEE Intl. Symposium on Phased Array Systems and Technology

During recent decades, phased array systems have made major steps forward with the development of many major radar and communications systems. due to many recent advances, including MMIC, photonics, and digital beamforming, phased array systems and technology continue to progress rapidly. Current and future developments of ground-based, sea-based, airborne, and space-based phased array radar, communications, and other electronic systems will be discussed at this international symposium.

Phased Array 2013, the 5th IEEE international symposium presenting advanced in phased array systems and technologies, will be held at the Westin Hotel, Waltham, Massachusetts on Boston’s famous Route 128.

Poster Presentations

Student Paper Competition

Special Sessions

For more info or to register go here.

G. L. Charvat dissertation, A Low-Power Radar imaging System now available free to anyone online

A Low-Power Radar Imaging System 

By 

Gregory Louis Charvat 

A near real-time radar-based imaging system is developed in this dissertation. This system uses the combination of a spatially diverse antenna array, a high sensitivity range-gated frequency-modulated continuous wave (FMCW) radar system, and an airborne synthetic aperture radar (SAR) imaging algorithm to produce near real-time high resolution imagery of what is behind a dielectric wall. This system is capable of detecting and providing accurate imagery of target scenes made up of objects as small as 6 inch tall metallic rods and cylinders behind a 4 inch thick dielectric slab. A study is conducted of through-dielectric slab imaging by the development of a 2D model of a dielectric slab and cylinder. The SAR imaging algorithm is developed and tested on this model for a variety of simulated imaging scenarios and the results are then used to develop an unusually high sensitivity range-gated FMCW radar architecture. An S-band rail SAR imaging system is developed using this architecture and used to image through two different dielectric slabs as well as free-space. All results are in agreement with the simulations. It is found that free-space target scenes could be imaged using low transmit power, as low as 5 picowatts. From this result it was decided to develop an X-band front end which mounts directly on to the S-band rail SAR so that objects as small as groups of pushpins and aircraft models in free-space could be imaged. These results are compared to previous X-band direct conversion FMCW rail SAR work. It was found that groups of pushpins and models could be imaged at transmit powers as low as 10 nanowatts. A spatially diverse S-band antenna array will be shown to be developed for use with the S-band radar; thereby providing the ability for near real-time SAR imaging of objects behind dielectric slabs with the same performance characteristics of the S-band rail SAR. The research presented in this dissertation will show that near real-time radar imaging through lossy-dielectric slabs is accomplished when using a highly sensitive radar system located at a stand-off range from the slab using a free-space SAR imaging algorithm.

http://www.glcharvat.com/website%20pdfs/G_L_Charvat_Dissertation.pdf

http://www.glcharvat.com/Dr._Gregory_L._Charvat_Projects/A_Low-Power_Radar_Imaging_System.html

Forget the tin foil hats, join the Tin Can Radar forum and learn how small radars really work

http://glcharvat.com/tincan/