TNP #18 - Repair & Analysis of a W-Band (75-110GHz) WR-10 12dBm Power Amplifier Module
17.6K views
June 12, 2022 7:14 PM
In this episode Shahriar takes a look at a non-functional W-Band (75-110GHz) power amplifier module with WR-10 waveguide ports. A quick inspection reveals a broken DC connector which can be easily repaired. Since a W-Band VNA or source is not available, the amplifier’s excess noise is instead measured using an external mixer and a Keysight MXA-B. The noise power spectral density shows the the amplifier is likely functional with the expected noise and gain.
http://www.TheSignalPath.com
http://www.YouTube.com/TheSignalPath
http://www.Patreon.com/TheSignalPath
TSP #208 - Tektronix 2-Series 4-Channel 2.5GS/s 500MHz MSO Review, Teardown & Experiments
33.1K views
June 7, 2022 11:20 AM
Is this episode Shahriar takes a look at the brand new 2-Series oscilloscope from Tektronix:
https://www.tek.com/en/products/oscilloscopes/nextgentek
This review is organized as follows:
00:00 – Introductions & overview.
01:23 – Instrument interfaces, specifications & design.
04:00 – Detailed teardown, instrument architecture & PCB design.
12:46 – Input impedance considerations, 50-Ohm passthrough experiment, FFT usage.
16:56 – Triggering on infrequent events, runt & pulse detection, advanced triggering usage.
21:25 – Detection analog waveform anomalies, high-resolution mode, acquisition control.
23:26 – Bus decoding capabilities, packet table viewing, UART decoding.
25:56 – AFG functionality, measuring filter responses, arbitrary & noise generation.
32:22 – Concluding remarks.
http://www.TheSignalPath.com
http://www.YouTube.com/TheSignalPath
http://www.Patreon.com/TheSignalPath
TSP #207 - Teardown & Detailed Analysis of Qualcomm's 60GHz Multi-Panel Phased Array WiGig System
47.4K views
May 22, 2022 1:21 PM
In this episode Shahriar takes a close look at a wireless-Ethernet product based on Qualcomm’s 60GHz WiGig chipset. The episode is inspired by the upcoming in-person RFIC & IMS IEEE conferences held starting June 19th, 2022 in Denver, Colorado, USA:
IEEE Radio Frequency Integrated Circuits Symposium:
https://rfic-ieee.org/
IEEE International Microwave Symposium:
https://ims-ieee.org/ims2022
The entire WiGig system architecture is analyzed end-to-end. The phased array module is presented using x-ray images and individual RFIC’s are examined under microscope.
http://www.TheSignalPath.com
http://www.YouTube.com/TheSignalPath
http://www.Patreon.com/TheSignalPath
TNP #17 - Teardown, Upgrade & Experiments with Sencore LC103 Rezolver Capacitor & Inductor Analyzer
14.9K views
May 21, 2022 7:31 PM
In this episode Shahriar takes a look at the very rare Sencore LC103 Rezolver Capacitor & Inductor Analyzer. The instrument receives a firmware upgrade (EPROM) as well a thorough cleaning. A brief teardown and main blocks of the unit are also presented. The basic functions of the instrument are verified and checked against the Keysight E4980A. The power supply and leakage capability of the instrument are also verified.
http://www.TheSignalPath.com
http://www.YouTube.com/TheSignalPath
http://www.Patreon.com/TheSignalPath
TSP #206 - Keithley 2281S Precision Power Supply & Battery Simulator Review, Teardown & Experiments
20.1K views
May 7, 2022 12:59 PM
In this episode Shahriar reviews the Keithley 2281S-20-6. This is a Dynamic Battery Simulator and Precision DC Bench Power Supply with TFT LCD display uses a model to emulate the response of a battery over its discharge cycle. Since the model can be based on the average current of the product that the battery will power, you can estimate battery life and analyze product performance over the life of the battery:
https://www.tek.com/en/products/keithley/dc-power-supplies/2281s-series
The review is organized as follows:
00:00 – Introduction.
00:35 – Instrument overview, interface, GUI, functions & design.
04:08 – Teardown, architecture, components and build quality.
10:03 – Precision power supply benefits, short-circuit hunting.
14:56 – Time-domain capabilities, pulse measurements, graphing functions, triggering.
20:59 – Battery Test capabilities, measuring super capacitors, measuring ESR, battery discharge.
26:20 – Creating a battery model during a charge cycle, battery capacity measurements.
27:29 – Creating a discharge battery model using the Keithley 2450 SMU.
29:32 – Battery Simulator function, battery models, modifying battery limits, stress testing DUT.
36:14 – Concluding remarks.
http://www.TheSignalPath.com
http://www.YouTube.com/TheSignalPath
http://www.Patreon.com/TheSignalPath
