Routing and layout in an antenna
Routing and layout for an antenna are described. In one embodiment, the antenna comprises an aperture having a plurality of radio-frequency (RF) radiating antenna elements, wherein each antenna element of the plurality of RF radiating antenna elements comprises an iris slot opening and an electrode over the iris slot opening; a plurality of drive transistors coupled to the plurality of antenna elements; and a plurality of storage capacitors, each storage capacitor coupled to the electrode of one antenna element of the plurality of antenna elements. The aperture also comprises at least one of: the drive transistor for the one antenna element is located under the electrode of the antenna element, the storage capacitor for the one antenna element is located under the electrode of the antenna element, and the metal routing to the one antenna element for a first voltage overlaps, in an overlap region, a common voltage routing that routes the common voltage to the one antenna element to form a storage capacitance.
1 . An antenna comprising:
a plurality of radio-frequency (RF) radiating antenna elements;
a plurality of tuning elements coupled to the plurality of RF radiating antenna elements for tuning the plurality of RF radiating antenna elements;
a plurality of drivers coupled to the plurality of antenna elements to provide voltages to the plurality of tuning elements; and
a plurality of multi-layered storage capacitors, each storage capacitor coupled to one antenna element of the plurality of antenna elements.
2 . The antenna of claim 1 wherein each storage capacitor of the multi-layered storage capacitors comprises a top plate and a bottom plate.
3 . The antenna of claim 1 wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element.
4 . The antenna of claim 3 wherein at least one storage capacitor comprises three drain terminals, with each of the three drain terminals coupled to a different RF radiating antenna element.
5 . The antenna of claim 4 further comprising a plurality of drain routing lines, wherein at least one of the plurality of drain routing lines is coupled to the at least one drain terminal.
6 . The antenna of claim 1 wherein each driver of the plurality of drivers comprises a drive transistor and is located with one storage capacitor of the plurality of multi-layered storage capacitors.
7 . The antenna of claim 6 wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element, and the drive transistor has source and gate metal lines, and further wherein a drain line coupled to said at least one drain terminal without crossing a gate metal line of a drive transistor of the plurality of drivers.
8 . The antenna of claim 6 wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element, and the drive transistor has source and gate metal lines, and further wherein a drain line coupled to one of the plurality of drain terminals of one of the plurality of structures without crossing a gate metal line or a source metal line of a drive transistor of the plurality of drivers.
9 . The antenna of claim 6 wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element, and the drive transistor has source and gate metal lines.
10 . The antenna of claim 1 wherein the plurality of RF radiating antenna element are varactor-based RF radiating antenna elements.
11 . The antenna of claim 1 wherein each RF radiating antenna element of the plurality of RF radiating antenna elements comprises an iris.
12 . The antenna of claim 11 wherein the iris is formed on an iris substrate.
13 . The antenna of claim 1 further comprising one or more metal routing lines between each driver and one or more RF radiating antenna elements.
14 . The antenna of claim 1 wherein plurality of drivers are part of a matrix drive control system.
15 . An antenna comprising:
a plurality of radio-frequency (RF) radiating antenna elements;
a plurality of tuning elements coupled to the plurality of RF radiating antenna elements for tuning the plurality of RF radiating antenna elements;
a plurality of drivers coupled to the plurality of antenna elements to provide voltages to the plurality of tuning elements; and
a plurality of multi-layered storage capacitors, each storage capacitor coupled to one antenna element of the plurality of antenna elements, wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element, and
wherein each driver of the plurality of drivers comprises a drive transistor and is located with one storage capacitor of the plurality of multi-layered storage capacitors.
16 . The antenna of claim 15 wherein at least one storage capacitor comprises three drain terminals, with each of the three drain terminals coupled to a different RF radiating antenna element.
17 . The antenna of claim 15 wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element, and the drive transistor has source and gate metal lines, and further wherein a drain line coupled to said at least one drain terminal without crossing a gate metal line of a drive transistor of the plurality of drivers.
18 . The antenna of claim 15 wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element, and the drive transistor has source and gate metal lines, and further wherein a drain line coupled to one of the plurality of drain terminals of one of the plurality of structures without crossing a gate metal line or a source metal line of a drive transistor of the plurality of drivers.
19 . The antenna of claim 15 wherein each storage capacitor of the multi-layered storage capacitors comprises at least one drain terminal, with each of said at least one drain terminal being coupled to one RF radiating antenna element, and the drive transistor has source and gate metal lines.
20 . The antenna of claim 15 wherein
the plurality of RF radiating antenna element are varactor-based RF radiating antenna elements, and
each RF radiating antenna element of the plurality of RF radiating antenna elements comprises an iris, and the iris is formed on an iris substrate.