Outdoor Wireless Networks LLC

Commscope Technologies LLC

Kamalakar Yeddula

Kumara Swamy Kasani

Ligang Wu

Rakesh Kalwani

Nbvs Krishna

Lenin Naragani

Lakshminarayana Pollayi

Faisalbin Abdulmajeed N

Jitendra Thakur

A hybrid coupler is disclosed. The hybrid coupler includes a printed circuit board. The printed circuit board includes at least two input ports, at least two output ports, and a plurality of couplers, each coupler of the plurality of couplers comprising first and second transmission traces and a coupling junction connecting the first and second transmission traces. The plurality of couplers are electrically coupled in series between the input ports and the output ports. The hybrid coupler further includes a defective ground structure below the coupling junction of at least one of the plurality of couplers.

Hybrid coupler and method for manufacturing hybrid couplers

Base station antennas are provided. A base station antenna includes a reflector having a first surface and a second surface that is opposite the first surface. The antenna includes first and second feed boards having first and second integrated beamforming networks, respectively, on the first surface of the reflector. The antenna includes a first plurality of high-band radiating elements that extend forward from the first feed board. The antenna includes a second plurality of high-band radiating elements that extend forward from the second feed board. Moreover, the antenna includes a plurality of low-band radiating elements on the first surface of the reflector.

Twin-beam base station antennas having integrated beamforming networks

A phase shifter, which may include an input port configured to receive a radio frequency (RF) signal. The phase shifter may include a first conductive trace that is electrically connected to a first output port. The first output port may be configured to output a first phase-shifted sub-component of the RF signal. The phase shifter may include a wiper configured to couple the input port to the first conductive trace. The wiper may include a first conductive pad adapted to slide on the first conductive trace. The first conductive trace may include a first metal trace that has a plurality of slits formed therein where the metal is omitted. Each slit may include an enlarged portion formed along a length thereof. The enlarged portion of at least some of the slits may be formed at a tip end of the slit and/or at a middle of the length of the slit.

Phase shifter for base station antenna

Base station antennas are provided. A base station antenna includes a first array of radiating elements and a second array of radiating elements that is interleaved with the first array. Each of the first and second arrays has a plurality of non-rectangular sub-arrays that include radiating elements in one or more outer columns and radiating elements in an inner column that is between the first and second outer columns.

Base station antennas having multi-column sub-arrays of radiating elements

A hybrid coupler is disclosed. The hybrid coupler comprises a printed circuit board having a first metallization layer and a second metallization layer arranged below the first metallization layer. The first metallization layer comprises at least two input ports and at least two output ports. The hybrid coupler further comprises a plurality of couplers coupled adjacent to each other on the first metallization layer. Each coupler of the plurality of couplers comprises transmission traces electrically coupled with the transmission traces of an adjacent coupler and the transmission traces of the plurality of couplers extend between the input ports and the output ports of the first metallization layer. The hybrid coupler furthermore comprises a defective ground structure having a pre-defined shape defined in the second metallization layer below each coupling junction formed between the transmission traces of the plurality of couplers.

Growing community of inventors

Nandyala, India

Kamalakar Yeddula