主权项 |
1. An antenna feed configured to receive a signal having a wavelength, comprising:
a cylindrical body; a series of pin groups extending across the center of the cylindrical body, wherein the series of pin groups are spaced at approximately equal distances and rotated an approximately equal number of degrees, and wherein the series of pin groups extend along a length of the cylindrical body for a distance of less than one wavelength of the signal; and a series of capacitive tuning probes, wherein the series of capacitive tuning probes are aligned with the series of pin groups and are rotated approximately 90° from the series of pin groups. |