H01Q 15/244
Converting a linear polarised wave into a circular polarised wave
Official title: {converting a linear polarised wave into a circular polarised wave (guided wave H01P1/17)}
H01Q15/244 (Converting a linear polarised wave into a circular polarised wave) appears on 143 US grants and 119 published applications in this corpus.
Search patents in H01Q- Granted patents
- 143
- Published applications
- 119
- Assignees
- 109
- Inventors
- 346
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
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| 1987 | 2 | 0 |
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| 1989 | 1 | 0 |
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| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
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| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 4 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 2 | 1 |
| 2010 | 2 | 1 |
| 2011 | 0 | 3 |
| 2012 | 3 | 2 |
| 2013 | 2 | 6 |
| 2014 | 1 | 3 |
| 2015 | 5 | 4 |
| 2016 | 7 | 10 |
| 2017 | 5 | 3 |
| 2018 | 6 | 7 |
| 2019 | 12 | 13 |
| 2020 | 16 | 21 |
| 2021 | 14 | 6 |
| 2022 | 7 | 7 |
| 2023 | 4 | 6 |
| 2024 | 5 | 8 |
| 2025 | 11 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Antenna switching method and terminal antenna22 Sep 2026US 12,744,318 B2Honor Device Co., Ltd.
- Switchable dual-band dual-polarized VICTS antenna system for satellite communication on-the-move9 Jun 2026US 12,651,850 B2Chengdu Guoheng Space Technology Engineering Co., Ltd.
- Antenna polarisation3 Feb 2026US 12,542,371 B2BAE SYSTEMS plc
- Transmitting or receiving circularly polarized signals by linearly polarized antennas20 Jan 2026US 12,531,585 B2Mediatek Inc.
- Longitudinally ridged quad polarizer feed30 Dec 2025US 12,512,596 B1Lockheed Martin Corporation
- Radio frequency identification (rfid) reader and a method for switching antenna polarization of rfid reader26 Mar 2026US 2026/0087278 A1Hand Held Products, Inc.
- System interference cancellation using metamaterials12 Mar 2026US 2026/0074435 A1Epfl
- Transmitting or receiving circularly polarized signals by linearly polarized antennas5 Mar 2026US 2026/0066932 A1Mediatek Inc.
- Antenna systems for obtaining position information using polarization loss optimization7 Aug 2025US 2025/0253539 A1Hewlett Packard Enterprise Development LP
- Multi-function micro-actuated metasurface26 Jun 2025US 2025/0210879 A1The University of Birmingham
Most cited
By later US patents
- Antenna structure with circularly polarized antenna beam323US 10,230,426 B1AT&T Intellectual Property I, L. P. · 2019
- Planar dual polarization antenna217US 4,903,033 AFord Aerospace Corporation · 1990
- Multi-band feed assembly for linear and circular polarization173US 8,994,473 B2Orbit Communication Ltd. · 2015
- Antenna feed with mode conversion and polarization conversion means138US 4,568,943 ARCA Corporation · 1986
- Antenna design using a high index, low loss material63US 5,563,616 ACalifornia Microwave, Inc. · 1996