Patents:

Our engineers have received over 20 Patents for various innovative RF and Antenna Systems. Some of these patents are listed below:

Patent Number: 3,534,371
Plural dipole vertical antenna with isolation chokes
Inventor: John M. Seavey

Patent Number: 4,065,772
Broadbeam radiation of circularly polarized energy
Inventor: John M. Seavey

Patent Number: 4,504,836 & 21,197,613
Antenna feeding with selectively controlled polarization
Inventor: John M. Seavey

Patent Number: 4,636,798
Microwave lens for beam broadening with antenna feeds
Inventor: John M. Seavey

Patent Number: 4,740,795 & 21,270,557
Dual frequency antenna feeding with coincident phase centers
Inventor: John M. Seavey

Patent Number: 5,099,249
Microstrip antenna for vehicular satellite communications
Inventor: John M. Seavey

Patent Number: 5,485,170
MSAT mast antenna with reduced frequency scanning
Inventor: Charles D. McCarrick

Patent Number: 5,485,485
Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites and hemispherical coverage antennas
Inventors: John M. Seavey, Robert D. Briskman (Baltimore, MD), Paul Medeiros (Fall River, MA)

Patent Number: 5,604,972
Method of manufacturing a helical antenna
Inventor: Charles D. McCarrick

Patent Number: 5,880,697
Low-profile multi-band antenna
Inventor: Charles D. McCarrick, John M. Seavey, Thomas Seay (Solana Beach, CA), Ronald K. Manherz (San Diego, CA), Wayne T. Cottle (San Diego, CA)

Patent Number: 6,034,647 & 2,283,527
Boxhorn array architecture using folded junctions
Inventor: John M. Seavey, Jeffrey A. Paul (Torrance, CA), Raymond Santos (Long Beach, CA)

Patent Number: 6,043,781
Low insertion loss connection of an antenna to a mobile radio with retractable swiveling antenna feature
Inventor: Charles D. McCarrick, Alex Toh (San Diego, CA), John Ratzel (San Diego, CA)

Patent Number: 6,043,788
Low earth orbit earth station antenna
Inventor: John M. Seavey

Patent Number: 6,545,649
Low Backlobe Variable Pitch Quadrifilar Helix Antenna System For Mobile Satellite Applications
Inventor: John M. Seavey

For full text and illustrations of the patents listed above, please visit the U.S. Patent and Trademark Office Online Database.