H01Q 13/18
The slot being backed by, or formed in boundary wall of, a
Official title: the slot being backed by, or formed in boundary wall of, a resonant cavity (longitudinally slotted cylinder H01Q13/12 ){; Open cavity antennas}
H01Q13/18 (The slot being backed by, or formed in boundary wall of, a) appears on 669 US grants and 603 published applications in this corpus.
Search patents in H01Q- Granted patents
- 669
- Published applications
- 603
- Assignees
- 386
- Inventors
- 1,528
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 10 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 8 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 1 |
| 2002 | 7 | 18 |
| 2003 | 13 | 14 |
| 2004 | 18 | 19 |
| 2005 | 14 | 11 |
| 2006 | 11 | 5 |
| 2007 | 1 | 6 |
| 2008 | 9 | 14 |
| 2009 | 12 | 4 |
| 2010 | 2 | 6 |
| 2011 | 2 | 15 |
| 2012 | 7 | 10 |
| 2013 | 5 | 24 |
| 2014 | 16 | 8 |
| 2015 | 10 | 16 |
| 2016 | 17 | 24 |
| 2017 | 23 | 19 |
| 2018 | 28 | 60 |
| 2019 | 49 | 36 |
| 2020 | 48 | 65 |
| 2021 | 58 | 63 |
| 2022 | 51 | 41 |
| 2023 | 38 | 42 |
| 2024 | 46 | 32 |
| 2025 | 37 | 27 |
| 2026 | 30 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Watch with biplanar slot antenna configuration15 Sep 2026US 12,736,923 B2Garmin International, Inc.
- Radar antenna with director15 Sep 2026US 12,738,660 B2Cubtek Inc.
- Electronic device18 Aug 2026US 12,712,288 B2Advanced Semiconductor Engineering, Inc.
- Antenna apparatus and mobile terminal4 Aug 2026US 12,700,661 B2Huawei Technologies Co., Ltd.
- Electronic device including antenna4 Aug 2026US 12,700,678 B2Samsung Electronics Co., Ltd.
- Antenna10 Sep 2026US 2026/0269476 A1NXP B. V.
- Cavity-backed slot antenna device10 Sep 2026US 2026/0269483 A1ASUSTeK COMPUTER INC.
- Phase shifter, antenna, and base station10 Sep 2026US 2026/0269484 A1Huawei Technologies Co., Ltd.
- Antenna structure, detection apparatus, and terminal device6 Aug 2026US 2026/0229767 A1Yinwang Intelligent Technologies Co., Ltd.
- Metal back-cavity antenna device23 Jul 2026US 2026/0213419 A1ASUSTeK COMPUTER INC.
Most cited
By later US patents
- Detection of fluids in tissue321US 7,122,012 B2Medrad, Inc. · 2006
- Clustered phased array antenna292US 5,512,906 A1996
- Electromagnetic sensors for biological tissue applications and methods for their use273US 7,591,792 B2Medrad, Inc. · 2009
- Near object detection system242US 6,670,910 B2Raytheon Company · 2003
- Comformal phased array antenna and method for repair237US 6,768,471 B2The Boeing Company · 2004