Radio antenna 3186

dipoledirectional

ETS-Lindgren's Model 3186 is a dual stacked log periodic dipole array antenna (LPDA), each of the two separate LPDAs comprising the dual array are 100 antennas. When assembled in parallel, the results are a 50 input impedance array. This array provides increased gain when compared to a single LPDA. The arrangement of the two LPDA in the arrays provides a very constant pattern across the entire frequency range. This antenna is ideal as a receive antenna for CISPR emissions testing above 1 GHz. It is also ideal when performing the site VSWR test as per CISPR 16. Key Features 2:1 VSWR Average Up to 20W Input Power Constant E- and H-Plane Beamwidth Flat Directivity Frequency Range The antenna covers a frequency range of 1 GHz to 18 GHz, making it ideal as a receive antenna for CISPR 16 based testing above 1 GHz. This antenna can be used with ETS-Lindgrens Model 3183 for performing the site VSWR chamber validation method per CISPR 16. Low VSWR The typical VSWR for the model 3186 is less than 2: 1. Low Input Power This antenna is mainly a receive antenna, with a maximum input power of 20W continuous wave and a peak power of 30W. Constant Beamwidth and Flat Directivity The model 3186 was designed to provide a very constant illumination from 1 GHz to 18 GHz. The Beamwidth in the two principal planes is 59.8 degrees for the E-plane (the polarization plane) and 57.0 degrees for the H-plane (the orthogonal plane) while the directivity is about 10 dB across the entire frequency range.