LTCC Oversized Rectangular Waveguide Slot Array Antenna With Air Layers

PROJECT TITLE :

LTCC Oversized Rectangular Waveguide Slot Array Antenna With Air Layers

ABSTRACT:

A partially dielectric-filled structure of low-temperature cofired ceramics (LTCC) outsized rectangular waveguide slot array antenna with air layers each in the radiating and the feeding components is presented. It includes a new structure of partially filled coupling junctions in the feeding waveguide. The potency evaluation shows that the air-layer addition reduces the transmission loss both within the radiating and therefore the feeding elements. The gain and bandwidth are enhanced. The effective dielectric constant is reduced and it broaden the bandwidth of the series-fed feed junctions and also the slot array. Using the LTCC with $varepsilon_r = vi.six$ and $tan delta = zero.013$, the dielectric losses of the feeding waveguide are reduced from four.5 to zero.5 dB. The losses of the radiating waveguide are reduced from three.7 to zero.forty five dB. Experimentally, the gain was shown to increase 5.five dB. The 3-dB-down bandwidth was improved from 1.4 to two.one GHz.

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