Slotted waveguide array antenna using printed waveguide transmission lines
View Patent ↗Example methods and systems for implementing slotted waveguide array antenna using printed waveguide transmission lines technology are described herein. One example method may include developing a slotted waveguide array antenna may be developed using a plurality of slotted waveguides aligned in an antenna array, in which each slotted waveguide may be developed using printed waveguide transmission lines technology. Components of the slotted waveguide array antenna may be developed using printed circuit board materials, such as Kapton-type laminate and FR4. In addition, through using printed waveguide transmission line technology, a slotted waveguide array antenna may be configured to radiate millimeter electromagnetic waves and may be configured to operate in radar, navigation, or other high frequency systems.
1. An apparatus comprising:
an antenna array including a plurality of radiating waveguides that comprise a plurality of layers including at least a first layer and a second layer, wherein the first layer includes a first conducting layer coupled to a first dielectric layer via a conducting adhesive layer, wherein the first conducting layer includes a first set of radiating apertures and the first dielectric layer includes a first set of waveguide channels, wherein the second layer is coupled to the first dielectric layer via a conducting adhesive layer and includes a second dielectric layer coupled between a second conducting layer and a third conducting layer via given conducting adhesive layers, wherein the second conducting layer includes a second set of radiating apertures and the second dielectric layer includes a second set of waveguide channels, wherein the second set of radiating apertures of the second conducting layer are offset at least in part with respective waveguide channels of the second set of waveguide channels, and the first set of radiating apertures of the first conducting layer are offset at least in part with respective waveguide channels of the first waveguide channels, wherein the first set of waveguide channels includes more waveguide channels than the second set of waveguide channels, and wherein the first set of waveguide channels are oriented in a parallel direction as the second set of waveguide channels; and
at least one feed waveguide coupled to the antenna array, wherein the at least one feed waveguide is configured to feed the plurality of radiating waveguides, and wherein the at least one feed waveguide includes an input on an end extended away from the antenna array configured to receive input to feed the plurality of radiating waveguides.
2. The apparatus of claim 1 , wherein the at least one feed waveguide includes a flange on the input.
3. The apparatus of claim 1 , wherein the first conducting layer, the second conducting layer, and the third conducting layer comprise FR4 or Kapton laminate.
4. The apparatus of claim 1 , wherein the at least one feed waveguide is configured in a series feed configuration.
5. The apparatus of claim 1 , wherein the plurality of radiating waveguides are configured to transmit millimeter electromagnetic waves.
6. The apparatus of claim 1 , wherein the plurality of radiating waveguides are configured to radiate electromagnetic waves in three-dimensions.