公开(公告)号：US20170110789A1

公开(公告)日：2017-04-20

申请号：US15393333

申请日：2016-12-29

Applicant: CommScope Technologies LLC

Inventor： Chunhui Shang ,  Bevan Beresford Jones ,  Ozgur lsik

IPC: H01Q1/24 ,  H01Q9/16 ,  H01Q1/48 ,  H01Q21/30 ,  H01Q9/04 ,  H01Q1/52 ,  H01Q21/26

CPC classification number: H01Q5/321 ,  H01Q1/246 ,  H01Q1/48 ,  H01Q1/52 ,  H01Q5/42 ,  H01Q9/0485 ,  H01Q9/16 ,  H01Q21/26 ,  H01Q21/30

Abstract: Low-band radiators of an ultra-wideband dual-band dual-polarization cellular basestation antenna and ultra-wideband dual-band dual-polarization cellular base-station antennas are provided. The dual bands comprise low and high bands. The low-band radiator comprises a dipole comprising two dipole arms adapted for the low band and for connection to an antenna feed. At least one dipole arm of the dipole comprises at least two dipole segments and at least one radiofrequency choke. The choke is disposed between the dipole segments. Each choke provides an open circuit or a high impedance separating adjacent dipole segments to minimize induced high band currents in the low-band radiator and consequent disturbance to the high band pattern. The choke is resonant at or near the frequencies of the high band.