Efficiently decreasing the bandwidth and increasing the radiated energy of an UWB radar or data link transmission
US5455593A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1994 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Jul 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An Ultra-Wideband (UWB) transmitter array consists of N individual transmitters coupled to a reference cw oscillator. Each of the N transmitters generates a waveform consisting of a number of cycles of a nominal carrier frequency of f.sub.0. The duration of the amplitude spectrum of the envelope of each signal is T. The transmitters are arranged in close proximity to form a multipole moment and are precisely synchronized to each other and delayed appropriately so that the resulting amplitude spectrum of the envelope of the transmitter array is due to a pulse duration of NT seconds. This reduces the overall signal bandwidth by a factor of N, at the same time increasing the radiated energy by a factor of N.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.