Covering L1 and L2 band

		Type1: Gain = 8.5dBic (L1), 5.0dBic (L2)
Type2: Gain = 8.6dBic (L1), 5.4dBic (L2)

Type1	Type2
Null Performance

CRS has developed Controlled Radiation Pattern Arrays for GPS applications with anti--jamming capability to be installed on vehicles or aircrafts. The key factor in the array's performance is the number of antenna elements. CRS CRPAs are 7-element active phased arrays capable of nulling 6 jammers. CRS CPRA uses a full polarization scheme (RHCP/LHCP, vertical-horizontal, or a combination of both), which significantly increases its nulling effectiveness. It prepares for all types of jammers by providing all types of polarizations for each elements, i.e., linear (V/H), circular (RHCP/LHCP), and elliptical. Spatial correlation is a negative factor in CRPA; the array elements in a conventional array must be placed far enough (at least half a wavelength) apart. A CRS CRPA utilizes novel EBG (Electromagnetic Band Gap) substrates to mitigate the mutual coupling effects between the array elements. This allows a 7-element CRPA to have less than 200mm diameter (conventional CRPA occupies 360mm diameter). The smaller CRPA can replace current FRPAs in many DoD applications, which currently cannot provide A/J capabilities. This antenna is also well-suited for commercial applications where digital beamforming is needed.