Outdoor Wireless Networks LLC

Commscope Technologies LLC

Mohammad Vatankhah Varnoosfaderani

Peter John Bisiules

Samantha Merta

Xiang Li

Bo Wu

Junfeng Yu

Jian Liu

Haifeng Li

Yongjie Xu

XiaoHua Hou

Xiaohua Tian

Shanguang Zhang

Dongmin Wang

Yuemin Li

Sammit Patel

Ruixin Su

Amit Kaistha

Nengbin Liu

Puliang Tang

Bin Sun

Fan He

Khanh Duy Tran

Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Base station antennas having an active antenna module and related devices and methods

An antenna includes a reflector and a pair of feed stalks on a forward facing surface of the reflector. The pair of feed stalks includes: (i) a first feed stalk having first and second ports, and first and second spiral inductors electrically connected to the corresponding first and second ports, respectively, and (ii) a second feed stalk having first and second ports and first and second spiral inductors electrically connected to the corresponding first and second ports, respectively. First and second pairs of radiating arms are provided. The first pair of radiating arms are electrically connected to the first and second ports of the first feed stalk and the second pair of radiating arms are electrically connected to the first and second ports of the second feed stalk.

Dual-polarized radiating elements for base station antennas having feed stalks with spiral-shaped inductors therein

Base station antennas include first and second radio frequency ('RF') ports and a first antenna array that includes both first and second radiating elements. Each of the first radiating elements includes a first radiator that is connected to the first RF port that is configured to radiate at a first polarization and a second radiator that is connected to the second RF port that is configured to radiate at the first polarization. Each of the second radiating elements includes a first radiator that is connected to the first RF port that is configured to radiate at a second polarization that is different from the first polarization and a second radiator that is connected to the second RF port that is configured to radiate at the second polarization.

Slant cross-polarized antenna arrays composed of non-slant polarized radiating elements

Base station antennas are provided that include a reflector assembly and a radiating element. The reflector assembly includes a reflector. The radiating element extends forwardly from the reflector. The reflector includes a nonmetallic substrate, and a metal layer mounted on the substrate.

Base station antennas having reflector assemblies including a nonmetallic substrate having a metallic layer thereon

A radiating element includes a feed stalk and first through fourth dipole arms. An outer segment of the first dipole arm and an outer segment of the second dipole arm are configured to together form a first radiating structure that radiates at a first polarization, an outer segment of the third dipole arm and an outer segment of the fourth dipole arm are configured to together form a second radiating structure that radiates at the first polarization, and first and second inner portions of each of the first through fourth dipole arms are configured to together form a third radiating structure that radiates at the first polarization when a first RF signal is fed to the radiating element.

Base station antennas having high directivity radiating elements with balanced feed networks

A hybrid coupler includes a 90° hybrid coupler and a first quarter wavelength conductive stub. The 90° hybrid coupler includes a coupling section, a first input transmission line that is coupled to the coupling section, a second input transmission line that is coupled to the coupling section, a first output transmission line that is coupled to the coupling section and a second output transmission line that is coupled to the coupling section. The first quarter wavelength conductive stub is coupled to the second output transmission line.

Broadband and low cost printed circuit board based 180° hybrid couplers on a single layer board

An antenna includes a radiator that is electrically coupled to a feed stalk having a common-mode rejection (CMR) filter therein. The CMR filter is configured to suppress common mode radiation from the radiator by providing a frequency dependent impedance to a pair of common mode currents within the feed stalk, which is sufficient to increase a return loss associated with the pair of common mode currents to a level of greater than −6 dB across a frequency range including a frequency of the common mode radiation.

Dual-polarized radiating elements for base station antennas having built-in common-mode rejection filters that block common mode radiation parasitics

Base station antennas include first through fourth radio frequency ('RF') ports, a plurality of first combiners that are coupled to the first and second RF ports, a plurality of second combiners that are coupled to the third and fourth RF ports, and an array that includes a plurality of radiating elements that have first through fourth radiators, where first and second radiators of each radiating element are coupled to a respective one of the first combiners, and third and fourth radiators of each radiating element are coupled to respective ones of the second combiners.

Base station antennas having arrays of radiating elements with 4 ports without usage of diplexers

Growing community of inventors

Richardson, TX, United States of America

Mohammad Vatankhah Varnoosfaderani