H01Q 13/20
Non-resonant leaky-waveguide or transmission-line antennas
Official title: Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
H01Q13/20 (Non-resonant leaky-waveguide or transmission-line antennas) appears on 1,482 US grants and 1,351 published applications in this corpus.
Search patents in H01Q- Granted patents
- 1,482
- Published applications
- 1,351
- Assignees
- 683
- Inventors
- 2,625
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 10 | 0 |
| 1982 | 13 | 0 |
| 1983 | 3 | 0 |
| 1984 | 11 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 11 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 11 | 0 |
| 1996 | 14 | 0 |
| 1997 | 14 | 0 |
| 1998 | 18 | 0 |
| 1999 | 32 | 0 |
| 2000 | 25 | 0 |
| 2001 | 22 | 10 |
| 2002 | 39 | 21 |
| 2003 | 13 | 18 |
| 2004 | 18 | 28 |
| 2005 | 21 | 25 |
| 2006 | 23 | 19 |
| 2007 | 16 | 29 |
| 2008 | 18 | 24 |
| 2009 | 27 | 26 |
| 2010 | 12 | 72 |
| 2011 | 26 | 23 |
| 2012 | 25 | 45 |
| 2013 | 36 | 53 |
| 2014 | 41 | 36 |
| 2015 | 47 | 60 |
| 2016 | 49 | 62 |
| 2017 | 56 | 81 |
| 2018 | 84 | 103 |
| 2019 | 110 | 131 |
| 2020 | 117 | 111 |
| 2021 | 115 | 80 |
| 2022 | 79 | 80 |
| 2023 | 64 | 61 |
| 2024 | 73 | 63 |
| 2025 | 53 | 52 |
| 2026 | 37 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01Q 13/206Microstrip transmission line antennas317
- H01Q 13/22Longitudinal slot in boundary wall of waveguide or transmission line303
- H01Q 13/28Comprising elements constituting electric discontinuities and spaced in direction of wave propagation245
- H01Q 13/24Constituted by a dielectric or ferromagnetic rod or pipe237
- H01Q 13/203Leaky coaxial lines207
- H01Q 13/26Surface waveguide constituted by a single conductor78
Recent patents
- Leaky coaxial cable and communication system29 Sep 2026US 12,750,088 B2Huawei Technologies Co., Ltd.
- Antenna device15 Sep 2026US 12,738,636 B2Yokowo Co., Ltd.
- Antenna device15 Sep 2026US 12,738,661 B2Inventec Corporation
- Omnidirectional antenna15 Sep 2026US 12,738,662 B2Electronics and Telecommunications Research Institute
- Oscillating waveguides and related sensor assemblies15 Sep 2026US 12,738,663 B2Magna Electronics Inc.
- Antenna device comprising a waveguide1 Oct 2026US 2026/0302584 A1QUALCOMM Incorporated
- Radiating elements having cloaked feed stalks and/or cloaked feed cables24 Sep 2026US 2026/0291077 A1Outdoor Wireless Networks LLC
- Radio transmission system17 Sep 2026US 2026/0280134 A1AGC Inc.
- Dielectric rod antenna and dielectric rod17 Sep 2026US 2026/0280135 A1DKK Company, Limited
- Open waveguide antenna and system having the same17 Sep 2026US 2026/0280149 A1Rogers Corporation
Most cited
By later US patents
- Surface wave antenna mountable on existing conductive structures611US 8,237,617 B1Sprint Communications Co.L.P. · 2012
- Quasi-optical coupler578US 9,209,902 B2AT&T Intellectual Property I, L. P. · 2015
- Methods and apparatus for inducing a fundamental wave mode on a transmission medium514US 9,509,415 B1AT&T Intellectual Property I, L. P. · 2016
- Access point and methods for use in a radio distributed antenna system479US 10,230,428 B1AT&T Intellectual Property I, L. P. · 2019
- Directly emitting dielectric transmission line474US 4,825,221 AJunkosha Inc. · 1989