Sidelobe suppression in multi-beam base station antennas

An antenna comprising:

• a housing;
• at least one lens mounted within the housing;
• a first reflector and a second reflector;
• a first array of radiating elements extending forwardly from a front surface of a planar section of the first reflector;
• a second array of radiating elements extending forwardly from a front surface of a planar section of the second reflector, wherein a first plane comprising the front surface of the planar section of the first reflector and a second plane comprising the front surface of the planar section of the second reflector intersect at an oblique angle;
• radio frequency (RF) absorber material covering a portion of the front surface of the planar section of the first reflector and a portion of the front surface of the planar section of the second reflector, wherein the front surfaces of the planar sections of the first and second reflectors face toward the at least one lens, and wherein the RF absorber material is configured to absorb first RF energy emitted by the first array of radiating elements that is directed toward the second reflector and is configured to absorb second RF energy emitted by the second array of radiating elements that is directed toward the first reflector.

An antenna comprising:

• at least one lens mounted within a housing;
• a first reflector and a second reflector;
• a first array of radiating elements extending forwardly from a front surface of a planar section of the first reflector;
• a second array of radiating elements extending forwardly from a front surface of a planar section of the second reflector, wherein a first plane comprising the front surface of the planar section of the first reflector and a second plane comprising the front surface of the planar section of the second reflector intersect at an oblique angle;
• a radio frequency (RF) choke positioned between the planar section of the first reflector and the planar section of the second reflector;
• wherein the RF choke is configured to reduce first RF energy emitted by the first array of radiating elements that is directed toward the second reflector and reduce second RF energy emitted by the second array of radiating elements that is directed toward the first reflector.