- Видео 40
- Просмотров 150 569
PRFI
Добавлен 23 июл 2013
Technical tutorials on a range of microwave and mm-wave design topics from PRFI Ltd.
PRFI is a UK based design house specialising in the design and development of RFICs, MMICs and microwave/mm-wave modules (see www.prfi.com/ for more information).
PRFI is a UK based design house specialising in the design and development of RFICs, MMICs and microwave/mm-wave modules (see www.prfi.com/ for more information).
Noise Power Ratio (NPR) - What is it, How Can I Simulate it and How do I Measure it?
Noise Power Ratio (NPR) is an important linearity measurement that is used in many RF and microwave system designs. This paper by Richard Cavanagh, presented at the ARMMS RF & Microwave Society conference in April 2024, describes the simulation of NPR in Keysight ADS and measurement of the CML Micro CMX90A702 and CMX90B701 using Rohde & Schwarz test equipment. Two methods are described, and good agreement is seen between measurement and simulation. For more information on PRFI's design and test and measurement services, and for more white papers and technical articles, please visit www.prfi.com
Просмотров: 148
Видео
How to Measure Noise Power Ratio (NPR)
Просмотров 5025 месяцев назад
Noise Power Ratio (NPR) is a useful linearity measurement for many RF and microwave applications. This video demonstrates how to measure the NPR of a 28GHz 0.4W GaAs MMIC designed by PRFI. A Rohde & Schwarz SMW200A is used to generate the wideband noise power signal at the input and a FSW spectrum analyser is used to obtain accurate measurements of the noise power ratio at the output.
Automating IP3 Measurements
Просмотров 2436 месяцев назад
Following on from our previous video on how to measure Third Order Intercept Point (IP3), this video demonstrates how PRFI speeds up our IP3 measurements through Python scripting. IP3 is a key linearity metric for RF, microwave and mmWave amplifiers and other components - please see our previous video for an introduction: ruclips.net/video/FeMPI_bokP8/видео.html
The Benefits of Thermal Imaging for Microwave Module Development
Просмотров 2318 месяцев назад
A good thermal camera is useful to have in an RF and microwave lab. PRFI invested in a high-quality unit from Testo to support our high power GaN amplifier module development work. We have found it a very useful diagnostic and analysis tool to support our microwave and mmWave module development activity.
How to Measure IP3
Просмотров 2,8 тыс.Год назад
Third Order Intercept Point (IP3) is a key metric for RF, Microwave and mmWave amplifiers and other components. This video explains what IP3 is, and demonstrates how to measure it with a real example amplifier (the CMX90B702 from CML Micro) in PRFI's lab.
Automated Measurement and Evaluation of 6-bit Amplitude and Phase Control Modules
Просмотров 170Год назад
Vector modulators can be used in the design of phased array antennas and in feedforward linearization systems. This paper by Richard Cavanagh, presented at the ARMMS RF & Microwave Society conference in April 2023, describes the automated testing of an S and C band 12-bit vector modulator, which uses a 6-bit phase shifter and 6-bit attenuator to vary signal phase and amplitude. A Python program...
How to Package mmWave MMICs
Просмотров 586Год назад
The mmWave frequency bands are being exploited to help meet the growing demand for broadband wireless data. The growth of high volume consumer applications such as 5G cellular and broadband satellite continues to drive the demand for low cost mmWave components in low-cost SMT packages. While the physical appearance of a packaged mmWave ICs is often much the same as packaged RF ICs, the potentia...
Optimising Supply Voltage in GaN PA Design
Просмотров 511Год назад
GaN transistors have a higher power density and breakdown voltage than competing technologies, so can be operated over a greater range of supply voltage. Using as an example the design of a 1.5W 28 - 32GHz power amplifier, David Collins describes how the supply voltage can be used as a variable in the design and optimisation process, which allows the improvement of PA performance at power back-...
The Advantages of Star Mixers Compared to Quad Diode Rings as Double Balanced Microwave Mixers
Просмотров 5202 года назад
Most commercially available, high linearity double balanced mixers adopt a quad diode ring topology - an excellent choice with many performance advantages. However, a star topology is functionally equivalent but offers a significant advantage in having inherently lower IF parasitics. This allows the realisation of mixers with much wider IF bandwidth, extending up into the RF and LO frequency ba...
5G Modulation Simulation of 28GHz 5G PA in Keysight ADS
Просмотров 2,1 тыс.3 года назад
Rob Smith describes how to use Keysight ADS to simulate the performance of a 28GHz power amplifier using 3GPP 5G modulation. A video describing the design of the PA can be viewed at bit.ly/5GMMICs. Please visit the PRFI website at www.prfi.com
FEM simulation in Keysight ADS
Просмотров 1,6 тыс.3 года назад
Rob Smith describes how to use the FEM simulator in Keysight ADS to simulate microwave package transitions and wire bonds. The key to success is to co-design the IC and the package, in order to optimise the performance of the packaged device rather than the IC on its own. Please visit our website at www.prfi.com
Technical Discussion on mmWave Packaging
Просмотров 1,1 тыс.3 года назад
In this latest in PRFI's series of technical discussions, Liam Devlin explains the challenges of packaging devices at mmWave frequencies, and the options and techniques available to achieve the best results
PRFI Overview
Просмотров 5784 года назад
An intoduction to PRFI, a UK-based design house specialising in the design of RFICs, MMICs and microwave & mmWave modules, for a range of applications including 5G telecoms. Find out more at www.prfi.com
An SMT Packaged 4-Channel mm-Wave PA for 5G Applications
Просмотров 6034 года назад
5G mobile devices operating at mmWave will incorporate electronic beam steering to address the difficulties of non-line of sight communications at these high frequencies. This requires the use of multiple parallel receive and transmit channels, which must be implemented in a low cost, compact manner. This presentation at the recent ARMMS RF & Microwave Society Conference describes the design of...
A fully-integrated 3.5GHz single-chip GaN Doherty PA for sub-6GHz 5G
Просмотров 2,4 тыс.5 лет назад
The design of an S-band, packaged Doherty PA MMIC for use in 5G base station transmitter applications is described. The design was realised on the GCS 0.4μm GaN process, and assembled by Filtronic into an 8 mm x 8 mm custom laminate QFN-36 package. 5G roll-out will take place in two distinct frequency ranges -the sub-6 GHz region (FR1) and the mmWave frequencies (FR2). It is expected that the f...
Dual channel SMT packaged PA for operation in Europe's 26GHz Pioneer Band for 5G
Просмотров 4365 лет назад
Dual channel SMT packaged PA for operation in Europe's 26GHz Pioneer Band for 5G
Power amplifier MMICs for mmWave 5G
Просмотров 1,8 тыс.5 лет назад
Power amplifier MMICs for mmWave 5G
The Design and Evaluation of a Plastic Packaged Single-Chip FEM for 28GHz 5G
Просмотров 8086 лет назад
The Design and Evaluation of a Plastic Packaged Single-Chip FEM for 28GHz 5G
Cost-Effective Input Matched GaN Transistor for S-band Radar Applications
Просмотров 7146 лет назад
Cost-Effective Input Matched GaN Transistor for S-band Radar Applications
Design of a dual-band PA for mmWave 5G
Просмотров 6 тыс.7 лет назад
Design of a dual-band PA for mmWave 5G
What technology developments are needed for millimetre-wave 5G?
Просмотров 4997 лет назад
What technology developments are needed for millimetre-wave 5G?
Mm-wave Components and Technologies for 5G Applications
Просмотров 4,1 тыс.7 лет назад
Mm-wave Components and Technologies for 5G Applications
An X-band MMIC PA designed on a UMS GaN Process using Keysight ADS
Просмотров 13 тыс.7 лет назад
An X-band MMIC PA designed on a UMS GaN Process using Keysight ADS
Technical Discussion - Custom MMIC Design
Просмотров 6308 лет назад
Technical Discussion - Custom MMIC Design
Technology Challenges and Emerging Trends for mm-wave 5G
Просмотров 7768 лет назад
Technology Challenges and Emerging Trends for mm-wave 5G
A 28GHz, 4-channel Phase Adjustable Power Amplifier IC for 5G front-ends
Просмотров 3,3 тыс.9 лет назад
A 28GHz, 4-channel Phase Adjustable Power Amplifier IC for 5G front-ends
The Design of a Broadband MMIC Frequency Doubler
Просмотров 3 тыс.10 лет назад
The Design of a Broadband MMIC Frequency Doubler
Simulating Distortion of QAM-256 Signals by GaN PAs
Просмотров 3,8 тыс.10 лет назад
Simulating Distortion of QAM-256 Signals by GaN PAs
Since these PA operating at high frequencies are doable long time ago. Why is it that only now 5G is entering the market?
Brilliant
very useful video- tahnks Rob
A very good and well explained video. Is there a specific way I can tell if the level of my third order products is acceptable or not? I guess it would somehow relate to my desired input power?
use the equation provide in 6:23. The rms calculate d is a single point. no relationship with frequent .what's wrong . sir ,can you provide complete equation thanks
CX in the chat boys
Can you provide manual for writing code for running n-bit cascaded phase shifters? I have designed MMIC but not able to simulate them in a row. Plz make it possible asap. Thank you
Inspirational and touching! Do not waste another day - promo sm !!
Given a unit cell is very likely unstable (May be not at x band), should an RC stability network be added to the FET during LP? Also the FET is very likely unstable at very low freq that can be mitigated with an RL bias line. Should that be added as well?
Yes, it's better to have one. The transistor may be stable at the design frequency, but it's better to add an RC network to stabilise the device at lower frequencies. From my experience with GaN 150 nm technology, this RC network can stabilise all the way down to 1 GHz, and the RL bias line should help for frequencies below that. And yes, these networks should be included during load pull.
You did not show the 4 channel composite layout and also did not discuss the crosstalk issues between channels through the dc and control lines
Outstanding tutorial. Thank you for sharing.
Wolfgang 4 Life
Ice Poseidon
Can u please send me the code files
Where can we find this simulation example? I also can't find it on the Keysight website or in the examples folder in ADS.
For anyone else that is interested, you can find the ADS template here: www.linkedin.com/posts/aehoward_simulating-evm-and-aclr-using-keysight-ads-activity-6721552530213498880-qUd5?
Website down
This was very helpful for me rhanks a lot
Kkkkkkek
This is a really helpful video. Can you share the simulation guide, I can't find it from Keysight? Thanks for your help.
worst Andy I've ever seen in IP2
very informative t7
zzzzzzzzzzzzzzzzzzzz
Phd
I used to do it 3 years back also. But it's results are less efficient than the FEM simulation done in CST & HFSS.
Can you send me the code please
Never forget horseshoe bay.
Hi @PRFI We have one of those probe station (Summit 9000 probe station) from Cascade in our lab. What is the proper procedure of cleaning the chuck board surface? Can I clean it with laboratory alcohol and a wipe cloth? Let me know. Thanks!
Hello! Thank you for this amazing presentation. What is the actual bandwidth of the modulating signal (Vtune)?
The script runs deep
Lmao
Ex
thanks for the video please do you know how to design a dielectric resonator oscillator in ADS ?? thanks
DX
Do u draw these manually or using all code
for which class it is???
Can I work in your company and in your department and design as you?
For this performance, how to compete with NxP’s 35d37?
Thanks a lot. Your video is very useful.
i want the workspace for the same...can you please share google drive link??
IP2 ANDY
Cx in the chat?
Very nicely explained. Great work!
Thanks a lot for the information
Thank you for this great video. Explanation of design procedure was very useful.
thanks for explanation can you share us simulink simulation code plz
How did you setup your phase noise simulation?
has this design been fabricated?. What's the size of the complete 4-channel chip
HOW IS POSSIBLE TO KEEP A CONTACT WITH YOU GUYS?
Nice. Very Nice!
Great video! very helpful to a grad student like me! PS: the guy sneezing in the background was kind of funny :-)
How much the applied input power (pin) to this design?