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1. 发明授权

US11601103B2 Channelised gain control of line amplifiers 有权
公开(公告)号：US11601103B2
公开(公告)日：2023-03-07
申请号：US16999826
申请日：2020-08-21
申请人： RF Industries Pty Ltd
发明人： Christopher John Snell , Gregory Steven Pope
IPC分类号： H03G3/00 , H01P3/06 , H01Q13/20
摘要： A method for controlling gain of a line amplifier on a cable, the method comprising selecting an unused carrier frequency; transmitting a pulsed pilot signal on the unused carrier frequency into the cable; determining a pilot signal output strength by measuring signal strength of the pilot signal after amplification by the line amplifier; comparing the pilot signal output strength with a target signal strength to determine a difference; and adjusting the gain of the line amplifier corresponding to the difference.

2. 发明申请

US20190103910A1 Frequency Translating Bi-Directional Amplifier 审中-公开
公开(公告)号：US20190103910A1
公开(公告)日：2019-04-04
申请号：US16123380
申请日：2018-09-06
申请人： RF Industries Pty Ltd
发明人： Scott Hayden ALFORD , Michael Leigh BEARD , Jeko Zaprianov GROZEV
IPC分类号： H04B7/155 , H04W72/04
摘要： A frequency translating bi-directional amplifier (10) for extending radio coverage for digital mobile radio communication devices (200) on a trunked network using a digital modulation scheme, comprising: a field programmable gate array (FPGA) with local controller (CPU) and firmware (22) configured to analyse control channel messages of a downlink control channel and modify the control channel messages of the downlink control channel that contain traffic channel information; and an antenna (12) to transmit the modified control channel messages to the digital mobile radio communication devices (200) in order to change an operating frequency of the digital mobile radio communication devices (200) to use a predetermined set of frequencies that are repeatable by the bi-directional amplifier (10); wherein the operating frequency between the digital mobile radio communication devices (200) and the bi-directional amplifier (10) is different to an operating frequency between a donor base station (300) and the bi-directional amplifier (10),

3. 发明授权

US09917631B2 Diversity monitoring antenna system 有权
公开(公告)号：US09917631B2
公开(公告)日：2018-03-13
申请号：US15334133
申请日：2016-10-25
申请人： RF Industries Pty Ltd
发明人： Anthony David Batholomaeus , Scott Hayden Alford
IPC分类号： H04B1/06 , H04B7/08 , H04B17/13 , H04B17/18 , H04B17/20 , H04B17/21 , H04B17/23 , H04B17/318
CPC分类号： H04B7/0814 , H04B17/13 , H04B17/14 , H04B17/18 , H04B17/20 , H04B17/21 , H04B17/23 , H04B17/318
摘要： Switching apparatus for use in RF transmission systems. The apparatus comprises first and second RF signal inputs, each coupled to an RF signal path including a coupler directing a portion of input RF signal power to corresponding first and second RF signal outputs. The apparatus includes an RF signal switching arrangement having a control input, a switch output, a first switch input coupled to the first RF signal path, a second switch input coupled to the second RF signal path, and the RF signal switching arrangement is operable by the control input to selectively connect the first or second switch input to the switch output. An RF signal monitoring output is coupled to the switch output, and a processor is configured to receive a switch command input and generate a switch control signal which is adapted to configure the RF signal switch arrangement in accordance with the switch command input.

4. 发明申请

US20210058048A1 CHANNELISED GAIN CONTROL OF LINE AMPLIFIERS 有权
公开(公告)号：US20210058048A1
公开(公告)日：2021-02-25
申请号：US16999826
申请日：2020-08-21
申请人： RF Industries Pty Ltd
发明人： Christopher John SNELL , Gregory Steven POPE
IPC分类号： H03G3/00 , H01Q13/20 , H01P3/06
摘要： A method for controlling gain of a line amplifier on a cable, the method comprising selecting an unused carrier frequency; transmitting a pulsed pilot signal on the unused carrier frequency into the cable; determining a pilot signal output strength by measuring signal strength of the pilot signal after amplification by the line amplifier; comparing the pilot signal output strength with a target signal strength to determine a difference; and adjusting the gain of the line amplifier corresponding to the difference.

5. 发明授权

US10141645B2 Multiband antenna 有权
公开(公告)号：US10141645B2
公开(公告)日：2018-11-27
申请号：US15333080
申请日：2016-10-24
申请人： RF Industries Pty Ltd
发明人： Wei Mu
IPC分类号： H01Q5/50 , H01Q1/38
摘要： An antenna comprising first and second radiating elements disposed in a collinear configuration on a dielectric substrate, wherein the first radiating element comprises a feed point. A first inter-element phasing section is conductively coupled to the first and second radiating elements, and has a meander line configuration adapted such that the first and second radiating elements radiate electro-magnetic radiation in-phase over a first range of frequencies. Third and fourth radiating elements are disposed in a collinear configuration on the substrate, and the third radiating element is electromagnetically coupled in parasitic relation to the first radiating element. A second inter-element phasing section is conductively coupled to the third and fourth radiating elements, and has a meander line configuration adapted such that the third and fourth radiating elements radiate electromagnetic radiation in-phase over a second range of frequencies which is different from the first range of frequencies.

6. 发明申请

US20170272142A1 DIVERSITY MONITORING ANTENNA SYSTEM 有权
公开(公告)号：US20170272142A1
公开(公告)日：2017-09-21
申请号：US15334133
申请日：2016-10-25
申请人： RF Industries Pty Ltd
发明人： Anthony David Batholomaeus , Scott Hayden Alford
IPC分类号： H04B7/08 , H04B17/318 , H04B17/13 , H04B17/23 , H04B17/21 , H04B17/20 , H04B17/18
CPC分类号： H04B7/0814 , H04B17/13 , H04B17/14 , H04B17/18 , H04B17/20 , H04B17/21 , H04B17/23 , H04B17/318
摘要： Switching apparatus for use in RF transmission systems. The apparatus comprises first and second RF signal inputs, each coupled to an RF signal path including a coupler directing a portion of input RF signal power to corresponding first and second RF signal outputs. The apparatus includes an RF signal switching arrangement having a control input, a switch output, a first switch input coupled to the first RF signal path, a second switch input coupled to the second RF signal path, and the RF signal switching arrangement is operable by the control input to selectively connect the first or second switch input to the switch output. An RF signal monitoring output is coupled to the switch output, and a processor is configured to receive a switch command input and generate a switch control signal which is adapted to configure the RF signal switch arrangement in accordance with the switch command input.

7. 发明申请

US20170264019A1 MULTIBAND ANTENNA 审中-公开
公开(公告)号：US20170264019A1
公开(公告)日：2017-09-14
申请号：US15333080
申请日：2016-10-24
申请人： RF Industries Pty Ltd
发明人： Wei Mu
IPC分类号： H01Q5/50 , H01Q1/38
CPC分类号： H01Q5/50 , H01Q1/38 , H01Q1/42 , H01Q5/378 , H01Q9/285 , H01Q11/14
摘要： An antenna comprising first and second radiating elements disposed in a collinear configuration on a dielectric substrate, wherein the first radiating element comprises a feed point. A first inter-element phasing section is conductively coupled to the first and second radiating elements, and has a meander line configuration adapted such that the first and second radiating elements radiate electro-magnetic radiation in-phase over a first range of frequencies. Third and fourth radiating elements are disposed in a collinear configuration on the substrate, and the third radiating element is electromagnetically coupled in parasitic relation to the first radiating element. A second inter-element phasing section is conductively coupled to the third and fourth radiating elements, and has a meander line configuration adapted such that the third and fourth radiating elements radiate electromagnetic radiation in-phase over a second range of frequencies which is different from the first range of frequencies.

8. 发明授权

US11082122B2 Frequency translating bi-directional amplifier 有权
公开(公告)号：US11082122B2
公开(公告)日：2021-08-03
申请号：US16123380
申请日：2018-09-06
申请人： RF Industries Pty Ltd
发明人： Scott Hayden Alford , Michael Leigh Beard , Jeko Zaprianov Grozev
IPC分类号： H04B7/155 , H04W72/04 , H04W88/08
摘要： A frequency translating bi-directional amplifier (10) for extending radio coverage for digital mobile radio communication devices (200) on a trunked network using a digital modulation scheme, comprising: a field programmable gate array (FPGA) with local controller (CPU) and firmware (22) configured to analyse control channel messages of a downlink control channel and modify the control channel messages of the downlink control channel that contain traffic channel information; and an antenna (12) to transmit the modified control channel messages to the digital mobile radio communication devices (200) in order to change an operating frequency of the digital mobile radio communication devices (200) to use a predetermined set of frequencies that are repeatable by the bi-directional amplifier (10); wherein the operating frequency between the digital mobile radio communication devices (200) and the bi-directional amplifier (10) is different to an operating frequency between a donor base station (300) and the bi-directional amplifier (10).

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