Microelectronics Technology, Inc.

Hsiang Hao Sung

Ruei Yuen Chen

Chih Jung Lin

Wen Chi Fu

An outdoor unit includes a dish antenna and a low noise block converter positioned at a focus point of the dish antenna. The low noise block converter comprises a housing, a feed cap disposed on top of the housing, and an air permeable membrane disposed on a bottom portion of the housing. The housing includes a base portion, at least one feed horn protruding from the base portion, and a bottom cover attached to a bottom of the base portion so as to form a housing cavity, wherein the bottom cover has a vent hole forming a flow path between the housing cavity and an external environment. The feed cap is disposed on a feed portion of the at least one feed horn and the air permeable membrane is disposed over the vent hole and coupled to the bottom cover via an adhesive, wherein the membrane is configured to permit egress of a gas from the housing cavity therethrough.

Low noise block converter and outdoor unit

An integral high frequency communication apparatus comprises a case, a waveguide apparatus having an extension portion, and a circuit board having a signal transmitting unit and a signal receiving unit. The transceiver module having two waveguide openings is retained in the case. The case has an opening through which the extension portion extends outside of the case. The integral high frequency communication apparatus can receive and transmit high frequency signals by the extension portion.

Integral high frequency communication apparatus

A low noise block converter includes a first printed circuit board, a second printed circuit board, and a housing. The first printed circuit board includes a metal layer disposed on a surface of the first printed circuit board. The second printed circuit board includes at least one chip. The housing includes a support surface configured to support the first printed circuit board, and a cavity formed on the support surface and configured to receive the second printed circuit board, wherein the first printed circuit board is placed on the support surface with the metal layer facing the cavity for shielding the electromagnetic fields radiated from the at least one chip.

Low noise block converter

A polarizer includes a waveguide channel having a substantially square cross section and a septum disposed within the waveguide channel. The septum includes a stepped edge and two opposite stepped surfaces. The stepped surfaces are sectionally recessed toward each other along the direction pointing toward the interior of the waveguide channel, wherein the number of the steps of the stepped surface is greater than two, but smaller than the number of the steps of the stepped edge. In one embodiment, the square cross section may include a plurality of rounded corners and a plurality of edges extending correspondingly between the rounded corners, wherein the ratio of the radius of the rounded corner to the distance between two opposite edges is in a range of from 0.05 to 0.3.

Polarizer and waveguide antenna apparatus using the same

An integral high frequency communication apparatus comprises a case, a waveguide apparatus having an extension portion, and a transceiver module having two waveguide openings. The transceiver module having two waveguide openings is retained in the case. The case has an opening through which the extension portion extends outside of the case. The integral high frequency communication apparatus can receive and transmit high frequency signals by the extension portion.

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Hsinchu, Taiwan

Hsiang Hao Sung