Sentence examples for beam width of about from inspiring English sources
The antenna effective area is about 20 m2, with a half-power beam width of about 8°.
For example, at Saskatoon, a vertically pointing 4 × 4 array of folded half-wave dipoles with a half-power beam width of about 15° operating at 2.219 MHz was used for transmission.
The main feature of the new Saura MF radar is the transmitting/receiving antenna which is arranged as a Mills Cross of 29 crossed half-wave dipoles with a minimum beam width of about 7°.
The collocated 1.96-MHz MF radar with a peak power of 50 kW is equipped with four crossed-dipole antennas for transmission and reception, and has a beam width of about 40° in the vertical, and altitude and time resolutions of 2 km and 6 min, respectively.
To detect echoes from the ionosphere over the Sea of Okhotsk, the FOV is covered with 16 narrow oblique beams (beams 0, 1, 2, …, 15; each two-way horizontal beam width of about 3.5° at 11 MHz) over an azimuth sector of 52°.
The beam can be reconfigured to six different directions, and each main lobe of six azimuth patterns has a half power beam width (HPBW) of about 60°.
Since the beam width of the current EISCAT UHF radar is about 2 km in the E region and 6 km at 300 km, the auroral structures often fill only partially the radar beam and hence the spectrum of auroral plasma cannot be correctly estimated.
A smaller PMI area was then chosen with smaller scanning step increments of 10 µm, which is about quarter of the beam width of the transducer in the scanning direction.
All beams had the same beam width of 250 mm and the beam length was 6.0 7.3 and 4.5 m for beams of Group I and II, respectively.
For the largest beam width of 256, the beam search already performs comparably to an exhaustive search.
