The Equilangular Spiral Fed by a Coplanar Microstrip Balun Covering the S, C, X, and K-Bands

Conference · Sun Aug 01 04:00:00 EDT 2010 · 2010 IEEE International Conference on Wireless Information Technology and Systems (ICWITS), pp 1-4

DOI:https://doi.org/10.1109/ICWITS.2010.5611880· OSTI ID:1055229

Martin, R P

There is a requirement to detect signals of interest in a variety of bandwidths over an extremely wide frequency range covering S, C, X, and K bands. In order to accomplish this, an array of antenna elements were designed and fabricated. Due to a span of nearly one decade from the lowest to the highest center frequency, an inherently wide-band cavity backed equiangular spiral antenna design was selected. To allow for miniaturization of the cavity, the spiral was center fed through a coplanar microstrip balun matching network. The antennas radiate right hand circularly polarized (RHCP) far field patterns to counteract cross-polarization effects of the incident electromagnetic field. Furthermore, the RHCP gain was simulated and measured at approximately 8 dBiC with a total 3 dB beam-width in the proximity of 60 degrees for each antenna.

• Research Organization: Nevada Test Site/National Security Technologies, LLC (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC52-06NA25946
• OSTI ID: 1055229
• Report Number(s): DOE/NV/25946--957
• Conference Information: Journal Name: 2010 IEEE International Conference on Wireless Information Technology and Systems (ICWITS), pp 1-4
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
Antenna
bandwidth detection