H01Q 13/0241
Radiating a circularly polarised wave
Official title: {radiating a circularly polarised wave (H01Q13/0258 takes precedence; polarisation converters H01Q15/244, in a waveguide H01P1/17)}
H01Q13/0241 (Radiating a circularly polarised wave) appears on 105 US grants and 89 published applications in this corpus.
Search patents in H01Q- Granted patents
- 105
- Published applications
- 89
- Assignees
- 76
- Inventors
- 206
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 4 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 2 | 1 |
| 2008 | 0 | 3 |
| 2009 | 3 | 1 |
| 2010 | 2 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 3 | 2 |
| 2014 | 0 | 1 |
| 2015 | 3 | 2 |
| 2016 | 2 | 5 |
| 2017 | 7 | 6 |
| 2018 | 5 | 11 |
| 2019 | 6 | 8 |
| 2020 | 15 | 8 |
| 2021 | 7 | 10 |
| 2022 | 7 | 6 |
| 2023 | 4 | 2 |
| 2024 | 6 | 5 |
| 2025 | 5 | 6 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spinning directional antenna in centimeter and millimeter wave bands24 Mar 2026US 12,586,897 B2University of Southern California
- Active phased array with integrated antennas and circuits on common printed circuit cards27 Jan 2026US 12,537,314 B2CesiumAstro, Inc.
- Horn antenna element6 Jan 2026US 12,519,243 B2Lisa Dräxlmaier GmbH
- Longitudinally ridged quad polarizer feed30 Dec 2025US 12,512,596 B1Lockheed Martin Corporation
- Dual polarization radar12 Aug 2025US 12,386,051 B2NXP B. V.
- Waveguide integrated substrates and waveguide array antenna apparatus19 Feb 2026US 2026/0051667 A1Agency for Defense Development
- Antenna array with dual-polarized parallel plate septum polarizer2 Oct 2025US 2025/0309544 A1ViaSat, Inc.
- Dual-polarized antenna array17 Jul 2025US 2025/0233311 A1Swissto12 SA
- Copper metal etched antenna for polarized uwb mimo26 Jun 2025US 2025/0210873 A1King Fahd University of Petroleum and Minerals
- Active Phased Array with Integrated Antennas and Circuits on Common Printed Circuit Cards26 Jun 2025US 2025/0210882 A1CesiumAstro, Inc.
Most cited
By later US patents
- Apparatus and methods for generating an electromagnetic wave along a transmission medium369US 10,135,145 B2AT&T Intellectual Property I, L. P. · 2018
- Dual band multimode coaxial tracking feed271US 6,323,819 B1Harris Corporation · 2001
- Feeder link antenna231US 5,870,060 ATRW Inc. · 1999
- Multi-band feed assembly for linear and circular polarization173US 8,994,473 B2Orbit Communication Ltd. · 2015
- Drive system and filament for a twistable septum in a feedhorn156US 4,829,313 AChaparral Communications, Inc. · 1989