Commscope Technologies LLC

Outdoor Wireless Networks LLC

Suzhou Xianjue New Materials Technology Co., Ltd.

Fan He

Peter John Bisiules

Bo Wu

Yuemin Li

Jian Zhang

Ruixin Su

Changfu Chen

Mohammad Vatankhah Varnoosfaderani

Nengbin Liu

Yong Xu

Lirong Zhang

Xinfeng Zhou

Hangsheng Wen

Amit Kaistha

PuLiang Tang

Puliang Tang

Yan Wang

Zhigang Wang

Fusheng Lv

Fangwen Wan

Haiyan Chen

Zhanming Zhang

The present disclosure relates to the field of biomaterial technology, and discloses an extracellular matrix hydrogel microsphere and a preparation method thereof. The method includes: constructing a neonatal rat bone marrow mesenchymal stem cell-derived extracellular matrix; preparing hydrogel microspheres by microfluidic technique; and using a condensing agent DMTMM to activate carboxyl groups on surfaces of hydrogel microspheres, and making the activated hydrogel microspheres react with amino groups of the extracellular matrix to obtain extracellular matrix hydrogel microspheres. The present disclosure constructs an extracellular matrix hydrogel microsphere, which realizes the advantage complementary between a hydrogel and a stem cell-derived extracellular matrix, and retains the biocompatibility of a hydrogel precursor material while having mechanical properties. By combining a hydrogel microsphere with an extracellular matrix, bone formation of bone marrow mesenchymal stem cells in vitro may be significantly promoted, and osteoclast differentiation is inhibited, which provides more possibilities for cranial defect repair.

Extracellular matrix hydrogel microsphere, and preparation method and application thereof

The present disclosure relates to a base station antenna; the base station antenna comprises: a radio; a feed board and a radiating element array mounted on the feed board, where the radiating element array comprises a plurality of radiating elements, and each radiating element extends forward from the feed board; a radome arranged in front of the radiating element array; and a plurality of radome supporting members mounted on the radio and extending forward from the radio to the radome for supporting the radome.

Base station antenna

RET assemblies suitable for base station antennas are provided that include a gear plate with a plurality of arms that extend in a longitudinally upward direction and a plurality of arms that extend in a longitudinally downward direction. The gear plate is coupled to a motor and lead screw that drive the gear plate, which in turn, rotates gears coupled to the gear plate. The gears rotate wipers of phase shifters in synchronization.

Ret assemblies providing synchronized phase shift of phase shifters for base station antennas

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

The present disclosure relates to a transmission mechanism for a base station antenna, and a base station antenna including the transmission mechanism. The transmission mechanism includes a motor and at least one connecting rod, wherein a gear mechanism is provided on a first end of the connecting rod, and the motor drives the connecting rod to rotate via the gear mechanism; and wherein a worm gear unit is provided on a second end of the connecting rod opposite to the first end, and the worm gear unit is configured to drive a movable element of a phase shifter when the connecting rod rotates. The transmission mechanism according to the present disclosure can generate greater driving force through the worm gear unit, and has a shorter axial length and a smaller height, and thus is particularly suitable for a more compact and thinner 5G base station antenna.

Transmission mechanism for base station antenna and base station antenna

Radiating elements include a conductive patch having first and second slots that each extend along a first axis and third and fourth slots that each extend along a second axis that is perpendicular to the first axis, a feed network that includes first through fourth feed lines, each feed line crossing a respective one of the first through fourth slots, and a conductive ring that at least partially surrounds the periphery of the conductive patch and that encloses each of the first through fourth slots.

Compact wideband dual-polarized radiating elements for base station antenna applications

A phase shifter includes: an input port configured to receive a radio frequency signal; an output port configured to output a radio frequency signal whose phase is changed; The output port and changing the phase of the radio frequency signal; and a replaceable dielectric board made of dielectric material and covering at least a part of the feed line.

Phase shifter having a substrate with a signal feed line thereon and including a replaceable dielectric board fixed to the substrate and covering the feed line

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Suzhou, China

Fan He