-
公开(公告)号：WO2021022385A1
公开(公告)日：2021-02-11
申请号：PCT/CA2020/051096
申请日：2020-08-10
Applicant: NANOWAVE TECHNOLOGIES INC.
Abstract: Disclosed herein is a system and method for determining a thickness of ice on Radio Frequency (RF) systems The system includes a sensor unit for use in determining the thickness of ice on a surface of a RADAR system having a RADAR antenna, the sensor unit including a sensor unit antenna tunable to a harmonic of a RADAR antenna signal, the harmonic having a frequency within an ice absorption band, wherein the sensor unit antenna emits the harmonic at a first signal strength; and, a sensor unit receiver communicatively coupled to the sensor unit antenna and configured to detect a second signal strength of the harmonic received by the sensor unit antenna.
-
Patent Agency Ranking
公开(公告)号：WO2021026655A1
公开(公告)日：2021-02-18
申请号：PCT/CA2020/051107
申请日：2020-08-13
Applicant: NANOWAVE TECHNOLOGIES INC.
Inventor： NICHOLLS, Charles William Tremlett
Abstract: A transposed delay line oscillator including a mode selection filter and a transposed delay line is provided. An output of the transposed delay line is coupled to an input of the mode selection filter to establish an oscillator loop. Based on the transposed delay line output, the mode selection filter generates a mode selection signal including an isolated oscillatory mode, in a Radio Frequency (RF) band. The transposed delay line receives the mode selection signal for transposition to an intermediate frequency of an intermediate frequency (IF) delay line. The IF delay line includes a delay filter and a phase noise suppression loop configured to suppress de-correlated transposition phase noise resulting from a delay of the delay filter. Suppression of phase noise in the IF delay line enables cancellation of transposition phase noise when transposing the IF delay line output to the RF band.
-
公开(公告)号：WO2017031575A1
公开(公告)日：2017-03-02
申请号：PCT/CA2016/050975
申请日：2016-08-19
Applicant: NANOWAVE TECHNOLOGIES INC.
Inventor： NICHOLLS, Charles William Tremlett
Abstract: An optoelectronic oscillator (OEO) is disclosed comprising an electronically tunable filter for transposing narrow pass band characteristics of a surface acoustic wave (SAW) filter to a microwave frequency to provide mode selection in the OEO. An OEO is disclosed comprising a set of optical domain components, a downconverter in communication with an output of the optical domain components, and a set of radio frequency (RF) domain components in communication with an output of the downconverter. The set of RF domain components comprises a tunable filter operating at a filter center frequency and having an output coupled to the set of optical domain components for communicating a mode selection result. The tunable filter including a tuner; and a sub-filter. The sub-filter operating at a fixed center frequency to provide mode selection and adjacent mode suppression with respect to the tunable filter center frequency. The sub-filter center frequency being lower than the tunable filter center frequency, and a ratio of the tunable filter center frequency to a bandwidth of the sub-filter being at least 1000:1.
Abstract translation: 公开了一种光电子振荡器（OEO），其包括用于将表面声波（SAW）滤波器的窄通带特性转移到微波频率的电子可调谐滤波器，以在OEO中提供模式选择。 公开了一种OEO，其包括一组光域组件，与光域组件的输出通信的下变频器，以及与下变频器的输出通信的一组射频（RF）域组件。 RF域组件的集合包括以滤波器中心频率工作的可调滤波器，并且具有耦合到该组的光域分量的输出，用于传送模式选择结果。 可调滤波器包括调谐器; 和子滤波器。 子滤波器以固定的中心频率工作，以提供相对于可调谐滤波器中心频率的模式选择和相邻模式抑制。 子滤波器中心频率低于可调谐滤波器中心频率，并且可调滤波器中心频率与子滤波器的带宽的比率至少为1000：1。
-
公开(公告)号：WO2022198339A1
公开(公告)日：2022-09-29
申请号：PCT/CA2022/050461
申请日：2022-03-28
Applicant: NANOWAVE TECHNOLOGIES INC.
Abstract: An oscillator and method for maintaining a phase lock is provided. The oscillator may include an oscillator input port for receiving a reference signal, an oscillator output port for outputting an oscillator output, an unlocked oscillator oscillating in an unlocked state and outputting at a resonance frequency configured to drift in response to changes in an operating environment, and a phase locked loop (PLL) including a mixer having an output port configured to output the unlocked oscillator output mixed with a local oscillator output, the mixer output port in communication with a phase frequency detector and the oscillator output port, and the phase frequency detector generating a control signal based on a detected phase difference between the reference signal and the mixer output wherein the control signal adjusts the local oscillator output to compensate for the resonance frequency drift of the unlocked oscillator when mixed with the unlocked oscillator output.
-
公开(公告)号：WO2019222859A1
公开(公告)日：2019-11-28
申请号：PCT/CA2019/050711
申请日：2019-05-24
Applicant: NANOWAVE TECHNOLOGIES INC.
Inventor： MILLER, Justin , NICHOLLS, Charles William Tremlett , PITRE, Keegan
Abstract: A RADAR antenna system and method are provided. In an implementation, the system includes a base and first and second antennas configured to transmit independent first and second antenna beams, respectively. The first and second antennas are each coupled to the base so as to provide a common rotational axis for the first and second antennas. An antenna position controller is configured to independently control first and second transmission positions associated with the first and second antennas, respectively. Two different antenna technologies can be used, for example one for providing communications capability and the other for providing tracking capability. Other implementations include four or more antennas configured to transmit beams at similar or different frequencies. Improvements in scan rate proportional to the number of antennas are achieved compared to that achievable with a single beam, without an increase in the rotation rate of the antenna system.
-
公开(公告)号：WO2019222858A1
公开(公告)日：2019-11-28
申请号：PCT/CA2019/050710
申请日：2019-05-24
Applicant: NANOWAVE TECHNOLOGIES INC.
Inventor： NICHOLLS, Charles William Tremlett , MILLER, Justin , PITRE, Keegan
Abstract: A solid state RADAR antenna system is provided comprising at least one antenna configured to transmit a plurality of antenna beams. Each antenna beam is decoupled from each of the other plurality of antenna beams for transmitting in a blind range of a different antenna beam. Accordingly, in an implementation, the second antenna beam is transmitted so as to scan a first blind range associated with the first antenna beam. Decoupling antenna beams can be achieved using one or more of physical decoupling using different antennas, frequency decoupling using different bands and/or frequency multiplexing, or orthogonal polarization.
-
-
-
-
-
Search Results
6
records
(took 0.014 seconds)
