Telefonaktiebolaget Lm Ericsson (publ)

Francis Marion

Neil McGowan

Martin Da Silveira

Chunyun Jian

Andrew McNair

Martin Ethier

Weigang Zeng

Zhen Hong Wang

A low passive intermodulation (PIM) coaxial-to-printed circuit board (PCB) interface and method of constructing the same. According to one aspect, a coaxial-to-PCB interface couples signals between an electrical conductor trace in the PCB and an inner conductor of a coaxial structure having an insulator surrounded by an outer conductor. A metallic cylinder is inserted over the outer conductor of the coaxial structure and positioning the coaxial structure with respect to the PCB so that the outer conductor and insulator of the coaxial structure lie below a lower surface of the PCB. The inner conductor of the coaxial structure is inserted into a via extending from the lower surface of the PCB to an upper surface of the PCB. Solder is deposited in the via to provide an electrically conductive path between the electrical conductor trace of the PCB and the inner conductor of the coaxial structure.

Low PIM coax to PCB interface and method of constructing the same

A method and antenna system for achieving remote electrical tilt by a hybrid use of analog and digital phase shifting are disclosed. According to one aspect, a hybrid remote electrical tilt (HRET) antenna system includes a digital beamformer configured to apply a first set of at least one phase shift to each antenna subarray of at least one group of at least one antenna subarray. The at least one phase shift is determined to suppress sidelobes when a beam is steered to an elevation by the digital beamformer. The HRET antenna system also includes at least one analog phase shifter configured to apply a second set of at least one phase shift to at least one antenna subarray of each group of at least one antenna subarray so that a combined phase shift applied to each antenna element steers the beam to the elevation while suppressing the sidelobes.

Hybrid remote electrical tilt (HRET)

According to one aspect, an integrated antenna and filter unit, IAFU, is provided. The IAFU includes a filter portion including at least one filter configured to filter RF signals to generate filtered RF signals and a plurality of filter pins configured to output filtered RF signals, and an antenna portion securable to the filter portion where the antenna portion includes a PCB including a plurality of conductor traces each mateable with a corresponding one of the plurality of filter pins to electrically couple the plurality of filter pins directly to corresponding ones of the plurality of conductor traces on the PCB, and a plurality of antennas securable to the PCB where the plurality of antennas are electrically coupled to the plurality of conductor traces.

Integrated antenna and filter unit (IAFU) for 5th generation advanced antenna system (AAS) systems

Growing community of inventors

Gatineau, Canada

Francis Marion