Waveguide termination structure and method of manufacture

A multi-waveguide termination comprising:

• a radio frequency, RF, load, comprising:
• a plurality of load cells for absorbing incident RF energy;
• and
• a backing plate configured to absorb the RF energy propagating through the plurality of load cells, wherein the backing plate is integral with the plurality of load cells:
• a housing comprising a plurality of interior channels each arranged to guide RF energy from a respective waveguide;
• and
• an interface for coupling to the plurality of waveguides;
• wherein the RF load is integral with the housing, arranged such that each interior channel accommodates a respective load cell of the plurality of load cells.

A method of manufacturing a radio frequency, RF, multi-waveguide termination, the multi-waveguide termination comprising:

• an RF load comprising:
• a plurality of load cells for absorbing incident RF energy;
• and
• a backing plate configured to absorb the RF energy propagating through the plurality of load cells:
• a housing comprising a plurality of interior channels each arranged to guide RF energy from a respective waveguide of a plurality of waveguides;
• and
• an interface for coupling to the plurality of waveguides;
• the method comprising:
• integrally forming the plurality of load cells with the backing plate;
• and
• fixing the backing plate of the RF load to the housing such that the load cell is fixed to the housing, and each interior channel accommodates a respective load cell of the plurality of load cells.

A method of manufacturing a multi-waveguide termination, the waveguide termination comprising:

• an RF load comprising:
• a plurality of load cells for absorbing incident RF energy;
• and
• a backing plate configured to absorb the RF energy propagating through the plurality of load cells;
• a housing comprising a plurality of interior channels each configured to guide RF energy from a respective waveguide;
• an interface for coupling to a plurality of waveguides;
• the method comprising:
• integrally forming the plurality of load cells with the backing plate and the housing, such that each interior channel accommodates a respective load cell of the plurality of load cells.