access icon free Bidirectional circularly-polarised loop linear array fed by slotted SIW

A novel multilayer bidirectional linear array with the same sense circularly polarised (CP) radiation patterns are proposed. The CP resonant unit consists of a pair of loops and two square patches added on their opposite corners. With a feeding slotted substrate integrated waveguide (SIW) sandwiched between two back-to-back mirror rotated resonant units, a radiating element is designed, and same sense bidirectional CP waves are generated. Along the longitude direction, the radiating elements are arranged alternately from the centre line of the slotted SIW. Then, an 8-element linear array with uniform distribution is designed. Identical right-hand CP waves are achieved in both front and back directions. The array is fabricated, and measured results are in good agreement with simulated ones.

Inspec keywords: linear antenna arrays; antenna feeds; substrate integrated waveguides; antenna radiation patterns; polarisation; loop antennas

Other keywords: CP radiation pattern; slotted SIW feed; radiating element; multilayer bidirectional circularly-polarised loop linear array; identical right-hand CP wave; slotted substrate integrated waveguide feed; 8-element linear array; uniform distribution; back-to-back mirror rotated resonant unit; bidirectional CP wave

Subjects: Waveguides and microwave transmission lines; Antenna arrays; Antenna accessories; Single antennas

http://iet.metastore.ingenta.com/content/journals/10.1049/el.2016.1639
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content/journals/10.1049/el.2016.1639
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