Abstract
A frequency reference device comprising a waveguide with a first end and a second end, a signal transmitter module for generating a high-frequency electromagnetic wave in the waveguide, and a signal receiver module for receiving the high-frequency electromagnetic wave in the waveguide. The component comprises a sealed enclosure, and said sealed enclosure is filled with a gas. The waveguide, first and second radiation coupling probes and the signal transmitter module and the signal receiver module are all located within said scaled enclosure.
Patent family as of 17.7.2026
EP4314957 A1, EP4314957 B1, EP4314957 C0, FI20215400 A, US12321138 BB, US2024192642 AA, WO22207964 A1
Patent family as of 17.7.2026
EP4314957 A1, EP4314957 B1, EP4314957 C0, FI20215400 A, US12321138 BB, US2024192642 AA, WO22207964 A1
| Original language | English |
|---|---|
| Patent number | US12321138 B2 |
| IPC | G04F5/14 |
| Priority date | 1/04/21 |
| Filing date | 18/02/22 |
| Publication status | Published - 3 Jun 2025 |
| MoE publication type | H1 Granted patent |
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