Chinese Radar Developments - KLJ series and others
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Hendrik_2000
Lieutenant General
The future of JF 17 look righter with the upcoming block III upgrade with AESA radar I guess Pakistan take the right approach by selecting modestly advance JF17 first and progressively upgrade the subsystem in the future model
From Henri K
LKF601E, KLJ-7A ... Who will be the next AESA radar of the JF-17?
BY
JF-17 Block III, currently under development at AVIC's 611 Chengdu Institute for the Pakistan Air Force, is expected to include a new Active Antenna Radar (AESA) radar. And the only option available so far has always been the KLJ-7A, a radar with just over 1,000 T / R, and was , at least for what has been made public.
But the 12th edition of the Airshow China show held in November this year in Zhuhai was an opportunity for the Institute 607, radar subsidiary of the Chinese manufacturer AVIC, to challenge this received belief.
LKF601E Active Antenna Radar (AESA) from the AVIC Institute 607 (LETRI) | Photos © East Pendulum
Indeed, this supplier of the AESA radar for the first J-16 of the Chinese Air Force presented the scale model of its LKF601E, in a well visible booth of the AVIC hall in Zhuhai. Unlike its competitor NRIET, which has chosen to hide the antenna part of its two similar AESA radars and publish no leaflets, the Leihua Electronic Technology Research Institute (LETRI) is more about transparency. Visitors can not only observe the radar in detail, especially the antenna face, but LETRI has also distributed flyers giving some of the characteristics of its radar.
It should be noted that the AVIC radar operator does not fail to recall the main prospect of his new product, by putting on the presentation card the mention "Equipped with FC-1 Figther", FC-1 being the internal name given by AVIC for JF-17.
According to the manufacturer's data, the mass of the LKF601E is less than 145 kg, and it consumes an electric power around 4.0 kVA. The radar has a range of 170 km against targets assimilated to hunters (5 m²?), And is able to track 15 targets at a time and engage 4 simultaneously. As for its Air-Surface performance, the figures give a resolution of 1 m × 1 m in SAR mode, and up to 220 km range over a maritime area of 1,000 m².
Some net surfers claim that the radar is equipped with 864 T / R, after counting according to the images, but this remains of course to be confirmed.
From Henri K
LKF601E, KLJ-7A ... Who will be the next AESA radar of the JF-17?
BY
JF-17 Block III, currently under development at AVIC's 611 Chengdu Institute for the Pakistan Air Force, is expected to include a new Active Antenna Radar (AESA) radar. And the only option available so far has always been the KLJ-7A, a radar with just over 1,000 T / R, and was , at least for what has been made public.
But the 12th edition of the Airshow China show held in November this year in Zhuhai was an opportunity for the Institute 607, radar subsidiary of the Chinese manufacturer AVIC, to challenge this received belief.
LKF601E Active Antenna Radar (AESA) from the AVIC Institute 607 (LETRI) | Photos © East Pendulum
Indeed, this supplier of the AESA radar for the first J-16 of the Chinese Air Force presented the scale model of its LKF601E, in a well visible booth of the AVIC hall in Zhuhai. Unlike its competitor NRIET, which has chosen to hide the antenna part of its two similar AESA radars and publish no leaflets, the Leihua Electronic Technology Research Institute (LETRI) is more about transparency. Visitors can not only observe the radar in detail, especially the antenna face, but LETRI has also distributed flyers giving some of the characteristics of its radar.
It should be noted that the AVIC radar operator does not fail to recall the main prospect of his new product, by putting on the presentation card the mention "Equipped with FC-1 Figther", FC-1 being the internal name given by AVIC for JF-17.
According to the manufacturer's data, the mass of the LKF601E is less than 145 kg, and it consumes an electric power around 4.0 kVA. The radar has a range of 170 km against targets assimilated to hunters (5 m²?), And is able to track 15 targets at a time and engage 4 simultaneously. As for its Air-Surface performance, the figures give a resolution of 1 m × 1 m in SAR mode, and up to 220 km range over a maritime area of 1,000 m².
Some net surfers claim that the radar is equipped with 864 T / R, after counting according to the images, but this remains of course to be confirmed.
Hendrik_2000
Lieutenant General
(cont)
In a video released by LETRI in early November, we also learn that the new AESA radar has already made its first tests on one of the prototypes of FC-1, the famous "06". The AVIC Radarist highlights two flagship features of its LKF601E, the first being full air cooling, which significantly reduces system weight and the need for rewiring, and the second is to replace the existing radar on the device without major modification, what LETRI calls "In-Situ replacement".
Installation of the LKF601E radar on one of the FC-1 prototypes | Pictures: AVIC LETRI
For its part, NRIET, the main radar designer in China who already equips many fighters like the J-10C and the J-20 with its AESA radars, also comes to the Zhuhai show with two novelties, all derived from its KLJ- 7A known for two years.
The first is an active antenna radar mounted on a pivotable device, which offers a much wider field of vision than a fixed flat-face radar, like the VIXEN or RAVEN ES-05 radars designed by Selex Galileo. Instead of seeing in a cone of ± 60 °, this mechano-electronic hybrid scanning radar is capable of scanning in a wider field to ± 100 °, reaching a small part of the rear half-sphere.
Although NRIET did not give any details on this variant of KLJ-7A which it calls "KLJ-7A Mechanical-Electronic Scan", one can at least rely on the basic version to extrapolate and know its performances.
It is an AESA radar with more than 1000 transmitters and receivers, with at least 11 operating modes and a range of 170 km on targets of 5 m² SER, and capable of tracking 15 different targets and engage 4 simultaneously. The antennas are of "Notch" type installed in a brick architecture, unlike the "Patch" or "Slot" type that we have already seen on some Chinese PESA and AESA embedded radars. This shape generates a greater beam width and also a better gain.
It can be seen that the basic LKF601E and KLJ-7A have many of their identical characteristics, but there is not enough detail for a complete comparison.
KLJ-7A Hybrid Scan Scanning Electromechanical | Photo © East Pendulum
The second variant of KLJ-7A that NRIET introduced this year for the first time is a system with not only one but three antennas, the main pointing forward and two others, smaller, towards the lateral sides.
The general idea resembles what the Russian Su-57 has today, with its AESA N036B side radars, or what was planned in Block 30 of the F / A-22A, namely side-view radars. The objective is to offer an even larger field of vision and this at any time, to reach 300 °, ie ± 150 ° for the plane. Only the rear cone of ± 60 ° remains "blind".
Note that the Chinese manufacturer has not used much to give it a name: "KLJ-7A Three Faces", a sign that it is also a product derived from the basic KLJ-7A.
As with the swivel disk version, NRIET did not provide any data on this version of KLJ-7A either. Radar personnel at Zhuhai simply indicated that it is the high-end variant of the product, and that the "customer" preferred the cheaper solution, implying the hybrid scan version.
KLJ-7A radar "Three Plans" | Photos © East Pendulum
Which of these three radars (actually four) EASA will win in the JF-17 Block III program? Without being behind the scenes it would seem that the "KLJ-7A Electro-Electronic Scanning" is the solution chosen, if we believe in NRIET staff. This choice seems reasonable because it is probably the one that best reconciles the cost, the energy management, the logistics continuity and the desired performance for the Pakistan Air Force.
As for the LKF601E, the fact that LETRI only placed "FC-1" and not "JF-17" on the Zhuhai presentation sign suggests that it would remain at the proposal stage for the moment. AVIC would eventually market the future retrofit upgrade for JF-17's Block I and II, which were still produced for a hundred or so devices.
In a video released by LETRI in early November, we also learn that the new AESA radar has already made its first tests on one of the prototypes of FC-1, the famous "06". The AVIC Radarist highlights two flagship features of its LKF601E, the first being full air cooling, which significantly reduces system weight and the need for rewiring, and the second is to replace the existing radar on the device without major modification, what LETRI calls "In-Situ replacement".
Installation of the LKF601E radar on one of the FC-1 prototypes | Pictures: AVIC LETRI
For its part, NRIET, the main radar designer in China who already equips many fighters like the J-10C and the J-20 with its AESA radars, also comes to the Zhuhai show with two novelties, all derived from its KLJ- 7A known for two years.
The first is an active antenna radar mounted on a pivotable device, which offers a much wider field of vision than a fixed flat-face radar, like the VIXEN or RAVEN ES-05 radars designed by Selex Galileo. Instead of seeing in a cone of ± 60 °, this mechano-electronic hybrid scanning radar is capable of scanning in a wider field to ± 100 °, reaching a small part of the rear half-sphere.
Although NRIET did not give any details on this variant of KLJ-7A which it calls "KLJ-7A Mechanical-Electronic Scan", one can at least rely on the basic version to extrapolate and know its performances.
It is an AESA radar with more than 1000 transmitters and receivers, with at least 11 operating modes and a range of 170 km on targets of 5 m² SER, and capable of tracking 15 different targets and engage 4 simultaneously. The antennas are of "Notch" type installed in a brick architecture, unlike the "Patch" or "Slot" type that we have already seen on some Chinese PESA and AESA embedded radars. This shape generates a greater beam width and also a better gain.
It can be seen that the basic LKF601E and KLJ-7A have many of their identical characteristics, but there is not enough detail for a complete comparison.
KLJ-7A Hybrid Scan Scanning Electromechanical | Photo © East Pendulum
The second variant of KLJ-7A that NRIET introduced this year for the first time is a system with not only one but three antennas, the main pointing forward and two others, smaller, towards the lateral sides.
The general idea resembles what the Russian Su-57 has today, with its AESA N036B side radars, or what was planned in Block 30 of the F / A-22A, namely side-view radars. The objective is to offer an even larger field of vision and this at any time, to reach 300 °, ie ± 150 ° for the plane. Only the rear cone of ± 60 ° remains "blind".
Note that the Chinese manufacturer has not used much to give it a name: "KLJ-7A Three Faces", a sign that it is also a product derived from the basic KLJ-7A.
As with the swivel disk version, NRIET did not provide any data on this version of KLJ-7A either. Radar personnel at Zhuhai simply indicated that it is the high-end variant of the product, and that the "customer" preferred the cheaper solution, implying the hybrid scan version.
KLJ-7A radar "Three Plans" | Photos © East Pendulum
Which of these three radars (actually four) EASA will win in the JF-17 Block III program? Without being behind the scenes it would seem that the "KLJ-7A Electro-Electronic Scanning" is the solution chosen, if we believe in NRIET staff. This choice seems reasonable because it is probably the one that best reconciles the cost, the energy management, the logistics continuity and the desired performance for the Pakistan Air Force.
As for the LKF601E, the fact that LETRI only placed "FC-1" and not "JF-17" on the Zhuhai presentation sign suggests that it would remain at the proposal stage for the moment. AVIC would eventually market the future retrofit upgrade for JF-17's Block I and II, which were still produced for a hundred or so devices.
SinoSoldier
Colonel
An article from Ordnance Technology, reporting from the Zhuhai Airshow, claimed that both the J-20 and J-16 are equipped a wide-angle AESA radar with three arrays (two to the side).
Any idea how credible Ordnance Technology is?
Any idea how credible Ordnance Technology is?
SinoSoldier
Colonel
Hendrik_2000
Lieutenant General
The military already has GaN Chip manufacturing but it is small and narrow base . Now the the private industry is getting into the act It will widen and enhance the industrial base for radar and wide band communication associated technology via xyz
Domestic 5G communication base station chip certified break the foreign monopoly
2018-12-12 09:19:48
According to The letter was informed by the Chinese Academy of Sciences and other high-end elite personnel of this Microelectronics team, after three years of technical research, with the structure of the process, package a number of patents, has completed a variety of key GaN power amplifier chip design, and has been CLP Group client authentication is successful.
GaN is representative of the third generation of semiconductor material. GaN using microwave RF devices currently used in the military field and 4G / 5G communications base scenario, for military security considerations, foreign embargo on China to implement a high-performance gallium nitride device. Therefore, the development of independent GaN RF power amplifier industry, to break the foreign monopoly of great significance.
The letter cited industry experts point out that the future of the maximum data rate is expected to reach 10Gbit per second, not only with each other fast communication between people, vehicles, equipment and even the production of robots will be added to the network, then the Internet of Things (IOT), or unmanned Industry 4.0 driving a car can achieve "real time radio communication" is not only reliable but is expected to be more cheaper.
据汇信获悉，由中国科学院精英等高端人才组成的本创微电子团队，历经3年技术攻关，拥有工艺结构、封装结构多项专利，已完成多款关键GaN功率放大器芯片设计，并已获中电集团客户认证成功。
GaN是第三代半导体的代表材料。采用GaN的微波射频器件目前主要用于军事领域及4G/5G通讯基站应用场景，出于军事安全的考量，国外对高性能的氮化镓器件实行对华禁运。因此，发展自主GaN射频功放产业，对于打破国外垄断具有重要的意义。
汇信援引业内专家指出，未来最大数据率料达每秒10Gbit，不仅人们之间相互快速通信，汽车、设备乃至生产机器人都将加入到网络中，届时物联网（IOT）、工业4.0或无人驾驶汽车都可实现“实时无线电通信”，不仅可靠而且可望更加廉价。
Domestic 5G communication base station chip certified break the foreign monopoly
2018-12-12 09:19:48
According to The letter was informed by the Chinese Academy of Sciences and other high-end elite personnel of this Microelectronics team, after three years of technical research, with the structure of the process, package a number of patents, has completed a variety of key GaN power amplifier chip design, and has been CLP Group client authentication is successful.
GaN is representative of the third generation of semiconductor material. GaN using microwave RF devices currently used in the military field and 4G / 5G communications base scenario, for military security considerations, foreign embargo on China to implement a high-performance gallium nitride device. Therefore, the development of independent GaN RF power amplifier industry, to break the foreign monopoly of great significance.
The letter cited industry experts point out that the future of the maximum data rate is expected to reach 10Gbit per second, not only with each other fast communication between people, vehicles, equipment and even the production of robots will be added to the network, then the Internet of Things (IOT), or unmanned Industry 4.0 driving a car can achieve "real time radio communication" is not only reliable but is expected to be more cheaper.
据汇信获悉，由中国科学院精英等高端人才组成的本创微电子团队，历经3年技术攻关，拥有工艺结构、封装结构多项专利，已完成多款关键GaN功率放大器芯片设计，并已获中电集团客户认证成功。
GaN是第三代半导体的代表材料。采用GaN的微波射频器件目前主要用于军事领域及4G/5G通讯基站应用场景，出于军事安全的考量，国外对高性能的氮化镓器件实行对华禁运。因此，发展自主GaN射频功放产业，对于打破国外垄断具有重要的意义。
汇信援引业内专家指出，未来最大数据率料达每秒10Gbit，不仅人们之间相互快速通信，汽车、设备乃至生产机器人都将加入到网络中，届时物联网（IOT）、工业4.0或无人驾驶汽车都可实现“实时无线电通信”，不仅可靠而且可望更加廉价。