公开(公告)号：CA2852383A1

公开(公告)日：2014-07-25

申请号：CA2852383

申请日：2013-04-04

Applicant: NANOWAVE TECHNOLOGIES INC

Inventor： NICHOLLS CHARLES WILLIAM TREMLETT

IPC: H03H11/12 ,  G01S7/03 ,  H03G5/16 ,  H03J7/02

Abstract: An electronically tunable filter (ETF) and systems comprising an ETF are disclosed herein. The ETF comprises: a first image rejection mixer; a second image rejection mixer; a first hybrid coupler, the first hybrid coupler being coupled to the first image rejection mixer; a second hybrid coupler, the second hybrid coupler being coupled to the second image rejection mixer; an internal filter coupled to the first hybrid coupler and the second hybrid coupler; a control port for receiving a control signal; a power splitter coupled to the control port, the first image rejection mixer, and the second image rejection mixer; a first port coupled to the first image rejection mixer; and a second port coupled to the first image rejection mixer.

公开(公告)号：CA2879231A1

公开(公告)日：2014-01-23

申请号：CA2879231

申请日：2013-07-08

Applicant: NANOWAVE TECHNOLOGIES INC

Inventor： NICHOLLS CHARLES WILLIAM TREMLETT ,  HAMDANE WALID

IPC: H03B5/00 ,  H03L7/24

Abstract: An apparatus and method for providing an output signal. The apparatus comprises an input for receiving a reference signal, an oscillator for providing an output signal, and an offset signal generator for frequency multiplying the reference signal to generate an offset signal that has a plurality of frequency products in a plurality of frequency bands. The apparatus further includes a mixer for mixing the offset signal with the output signal to produce a combined signal, an offset frequency selector for controllably selecting a frequency band of the offset signal, and a difference detector for detecting a difference between the reference signal and the combined signal and for providing a control signal to the oscillator based on the detected difference.

公开(公告)号：CA2852383C

公开(公告)日：2015-07-28

申请号：CA2852383

申请日：2013-04-04

Applicant: NANOWAVE TECHNOLOGIES INC

Inventor： NICHOLLS CHARLES WILLIAM TREMLETT

IPC: H03H11/12 ,  G01S7/03 ,  H03G5/16 ,  H03J7/02

Abstract: An electronically tunable filter (ETF) and systems comprising an ETF are disclosed herein. The ETF comprises: a first image rejection mixer; a second image rejection mixer; a first hybrid coupler, the first hybrid coupler being coupled to the first image rejection mixer; a second hybrid coupler, the second hybrid coupler being coupled to the second image rejection mixer; an internal filter coupled to the first hybrid coupler and the second hybrid coupler; a control port for receiving a control signal; a power splitter coupled to the control port, the first image rejection mixer, and the second image rejection mixer; a first port coupled to the first image rejection mixer; and a second port coupled to the first image rejection mixer.

公开(公告)号：CA2879226A1

公开(公告)日：2014-01-23

申请号：CA2879226

申请日：2013-07-08

Applicant: NANOWAVE TECHNOLOGIES INC

Inventor： NICHOLLS CHARLES WILLIAM TREMLETT ,  HAMDANE WALID

IPC: G01R23/12

Abstract: Circuits and methods for identifying or verifying frequencies are disclosed herein. A frequency verification circuit comprises: an input port for receiving an input signal; a phase frequency difference detector for determining a difference in phase and frequency between the input signal and a feedback signal and for providing a control signal based on the detected difference; a voltage controlled crystal oscillator for producing an output signal based on the control signal; and a feedback loop including a feedback divider for frequency dividing the output signal by a factor R to produce the feedback signal, the feedback divider being programmable to a plurality of values of the factor R to correspond to a plurality of different test frequencies.

公开(公告)号：CA2912799A1

公开(公告)日：2014-11-27

申请号：CA2912799

申请日：2014-05-23

Applicant: NANOWAVE TECHNOLOGIES INC

Inventor： FAHMI MOHAMED MOHAMED

IPC: H01P5/12

Abstract: Embodiments disclosed herein relate to wave guide couplers as well as 3-way, 6-way, and 9-way combiners. The waveguide coupler comprises: a housing having a first outer waveguide branch, a second outer waveguide branch, and an inner waveguide branch; first, second, and third input ports in communication with the first outer, second outer, and the inner waveguide branches respectively; an output port in communication with the inner waveguide branch; a first wall separating the first outer waveguide branch and the inner waveguide branch, the first wall having a first iris; a second wall separating the second outer waveguide branch and the inner waveguide branch, the second wall having a second iris; a first tapered section in the first outer waveguide branch; and a second tapered section the second outer waveguide branch. Various embodiments of the 3-way, 6-way, and 9-way combiners are implemented using the wave guide coupler.

公开(公告)号：US11942689B2

公开(公告)日：2024-03-26

申请号：US17058382

申请日：2019-05-24

Applicant: Nanowave Technologies Inc.

Inventor： Justin Miller ,  Charles William Tremlett Nicholls ,  Keegan Pitre

IPC: H01Q21/28 ,  G01S7/00 ,  G01S7/03 ,  G01S13/10 ,  G01S13/72 ,  H01Q3/08 ,  H01Q21/06 ,  G01S7/28

CPC classification number: H01Q21/064 ,  G01S7/006 ,  G01S7/032 ,  G01S13/10 ,  G01S13/726 ,  H01Q3/08 ,  H01Q21/28 ,  G01S7/28

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：US20220329239A1

公开(公告)日：2022-10-13

申请号：US17634590

申请日：2019-08-13

Applicant: Nanowave Technologies Inc.

Inventor： Charles William Tremlett NICHOLLS

IPC: H03K5/1252 ,  H03K5/14 ,  H03D7/00

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：US20220278648A1

公开(公告)日：2022-09-01

申请号：US17634602

申请日：2020-08-13

Applicant: Nanowave Technologies Inc.

Inventor： Trevor James HALL ,  Charles William Tremlett NICHOLLS ,  Boris SPOKOINYI ,  Mehedi HASAN

IPC: H03B17/00 ,  H03L7/081 ,  H03L7/087 ,  H04B10/50

Abstract: An optoelectronic oscillator (OEO) including a drift compensation circuit is provided. The OEO includes a set of optical domain components communicatively coupled with a set of RF domain components. The RF domain components include a mode selection filter, a phase locked loop (PLL) and a drift compensation circuit communicatively coupled between the mode selection filter and the PLL. The mode selection filter provides a mode selection result to the drift compensation circuit. The drift compensation circuit phase modulates the mode selection result in a vector based coordinate system to maintain a drift compensated mode selection result within a locking bandwidth of the PLL, and to minimize phase shifting from accumulating phase drift. The PLL detects a phase difference between the drift compensated mode selection result and a reference signal, for use in maintaining the PLL in a phase lock with the reference signal, in particular over wide operational temperature ranges.

公开(公告)号：US20210203081A1

公开(公告)日：2021-07-01

申请号：US17058382

申请日：2019-05-24

Applicant: Nanowave Technologies Inc.

Inventor： Justin MILLER ,  Charles William Tremlett NICHOLLS ,  Keegan PITRE

IPC: H01Q21/06 ,  H01Q3/08 ,  H01Q21/28 ,  G01S13/10 ,  G01S13/72 ,  G01S7/00 ,  G01S7/03

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：US20240007137A1

公开(公告)日：2024-01-04

申请号：US18344138

申请日：2023-06-29

Applicant: Nanowave Technologies Inc.

Inventor： Charles William Tremlett NICHOLLS ,  Walid HAMDANE

IPC: H04B1/00 ,  H04B1/16

CPC classification number: H04B1/0075 ,  H04B1/16

Abstract: A filter, apparatus, system and method are provided for implementing a band select filter, for example a frequency agile band select filter. In an implementation, the filter includes two separate signal generators configured to provide different local oscillator signals to an input mixer and to an output mixer, resulting in the filter output frequency being different from the filter input frequency. This is in contrast to known approaches which use the same signal generator to drive both input and output mixers. The filter may include two bandpass filters, three mixers, and three signal generators, each signal generator uniquely associated with one of the mixers, and configured to provide bandwidth control. A system of filters may include a set of bandpass filters, a plurality of sets of mixers, and a plurality of sets of signal generators, each set of signal generators being associated with a different set of mixers.