US 12,113,260 B2
Dual-band septum polarizer
Martin Gimersky, Morges (CH)
Assigned to Viasat, Inc., Carlsbad, CA (US)
Appl. No. 17/620,038
Filed by VIASAT, INC., Carlsbad, CA (US)
PCT Filed Jun. 18, 2020, PCT No. PCT/US2020/038513
§ 371(c)(1), (2) Date Dec. 16, 2021,
PCT Pub. No. WO2020/257511, PCT Pub. Date Dec. 24, 2020.
Claims priority of provisional application 62/863,639, filed on Jun. 19, 2019.
Prior Publication US 2022/0263209 A1, Aug. 18, 2022
Int. Cl. H01P 1/165 (2006.01); H01P 1/16 (2006.01); H01P 1/17 (2006.01); H01P 3/00 (2006.01); H01P 3/12 (2006.01); H01Q 13/02 (2006.01); H01Q 15/24 (2006.01)
CPC H01P 1/173 (2013.01) [H01P 1/16 (2013.01); H01P 1/165 (2013.01); H01P 3/12 (2013.01); H01Q 13/025 (2013.01); H01Q 15/242 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A waveguide device, comprising:
a housing comprising a first set of opposing sidewalls and a second set of opposing sidewalls, wherein the housing comprises a common port at a first end of the housing;
a septum disposed within the housing and extending, at a second end of the housing, from a first sidewall of the first set of opposing sidewalls to a second sidewall of the first set of opposing sidewalls to form a first divided port and a second divided port at the second end of the housing; and
a sidewall feature on the first set of opposing sidewalls and the second set of opposing sidewalls at a position along a central axis of the housing, wherein the sidewall feature has a same shape on each of the first set of opposing sidewalls and the second set of opposing sidewalls, and wherein:
the sidewall feature comprises a first edge closer to the first end of the housing and a second edge closer to the second end of the housing,
the sidewall feature has a width in a direction along the central axis of the housing, the width being measured between the first edge and the second edge, and
a height of the sidewall feature is less than one tenth of a wavelength of an operational frequency of the waveguide device and the width of the sidewall feature is within a range of one tenth to one half of the wavelength of the operational frequency.