H03H 11/20
Two-port phase shifters providing an adjustable phase shift
H03H11/20 (Two-port phase shifters providing an adjustable phase shift) appears on 228 US grants and 164 published applications in this corpus.
Search patents in H03H- Granted patents
- 228
- Published applications
- 164
- Assignees
- 139
- Inventors
- 476
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 4 |
| 2004 | 2 | 2 |
| 2005 | 3 | 1 |
| 2006 | 1 | 1 |
| 2007 | 2 | 4 |
| 2008 | 1 | 6 |
| 2009 | 6 | 4 |
| 2010 | 5 | 3 |
| 2011 | 3 | 7 |
| 2012 | 2 | 4 |
| 2013 | 2 | 4 |
| 2014 | 10 | 8 |
| 2015 | 10 | 4 |
| 2016 | 3 | 3 |
| 2017 | 5 | 5 |
| 2018 | 9 | 16 |
| 2019 | 12 | 9 |
| 2020 | 17 | 13 |
| 2021 | 5 | 12 |
| 2022 | 11 | 13 |
| 2023 | 9 | 4 |
| 2024 | 8 | 9 |
| 2025 | 11 | 15 |
| 2026 | 7 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gain invariant bidirectional phase shifter18 Aug 2026US 12,712,245 B2Texas Instruments Incorporated
- Shared phase shifter radio architecture2 Jun 2026US 12,647,107 B2QUALCOMM Incorporated
- Phase shifters with low amplitude variation7 Apr 2026US 12,597,688 B2STMicroelectronics International N. V.
- Transceiver and wireless communication apparatus including the same24 Feb 2026US 12,562,771 B2Samsung Electronics Co., Ltd.
- Phase adjustment circuit27 Jan 2026US 12,537,517 B2NTT, Inc.
- Signal generation circuit6 Aug 2026US 2026/0230042 A1The Ritsumeikan Trust
- Bidirectional variable gain phase shifter based on asymmetric power distribution2 Jul 2026US 2026/0189214 A1UIF (University Industry Foundation), Yonsei University
- Bidirectional variable gain phase shifter18 Jun 2026US 2026/0172005 A1Electronics and Telecommunications Research Institute
- Phase shift attenuation circuits, phase shift attenuation network and radio frequency microwave systems11 Jun 2026US 2026/0163556 A1Etra Semiconductor (Suzhou) Co., Ltd.
- Reflection-type phase shifter device11 Jun 2026US 2026/0163557 A1STMicroelectronics International N. V.
Most cited
By later US patents
- Voltage controlled phase shifter with unlimited range161US 5,554,945 ARambus Inc. · 1996
- Vector sum phase shifter, optical transceiver, and control circuit128US 8,687,968 B2Nippon Telegraph and Telephone Corporation · 2014
- Circuit for dynamic control of phase shift89US 3,969,682 AOberheim Electronics Inc. · 1976
- Tuning amplifier68US 6,034,566 ATakeshi Ikeda · 2000
- Digitally controlled monolithic active phase shifter apparatus having a cascode configuration62US 4,994,773 A1991