Watkins Johnson Tech-Notes Archive
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February 7, 2018 Update: Thanks to
Mr. Paul Herzig, of Raytheon, for writing to tell me that the hyperlink I originally
had to the Watkins-Johnson Tech-Note collection on the TriQuint website is no longer
valid. Qorvo (formerly RF Micro Devices, RFMD) took them down after acquiring TriQuint
a few years ago. They were all still available as of September 2015, but alas no more.
Paul provided many of the Tech-Notes in the following list for posting directly on RF
Cafe. Also, I discovered that some of the original Watkins-Johnson Communications web pages can still be accessed
via the Wayback Machine™ on the Archive.Org website:
Watkins-Johnson Tech-Notes
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 Believe
it or not, there was a time when the Internet did not exist, and getting quality information
(or perhaps more notably today, bad information) was not so easy. Waaaaayyyyyy back in
the 1970s and 1980s when I was new to the electronics design world, offices, cubicles,
laboratories, company technical libraries, even hallways, were piled high with reference
books, magazines, component books, applications notes, datasheets, white papers, and
every other form of information that might be useful or someone probably found useful
at some time in the past.
Now, of course, the preferred source for information is the Internet, particularly
from trusted sources like universities, book publishers, RF Cafe, etc. The problem is
that a lot of the old data that was uniquely useful, has not been archived on the Web.
Such is the case with an exceptionally useful set of Tech-Notes that appeared
in the Watkins Johnson parts catalogs of yore (circa 1980). It is quite difficult to
locate those notes, especially since websites keep moving the files around, breaking
links. So, as a matter of public service, I am making them available here. All copyrights
are hereby acknowledged. At this time there are 82 Tech-Notes.
Also, don't forget the classic datasheet for the Watkins-Johnson WJ-G1/SMG1 Voltage-Controlled
Attenuator datasheet with the
Phase vs. VCTL
vs. Frequency vs. Phase of the Moon Chart.
- Combline Filters for
Microwave and Millimeter-Wave Frequencies, Part 1, v17-5
- Combline Filters for
Microwave and Millimeter-Wave Frequencies, Part 2, v17-6
- Frequency Discriminators, v16-4
- Parallel Testing of
Magnetic Bubble Memories, v13-1
- Software Design of
Microprocessor-Controlled Receivers, Part 2, v12-1
- Aircraft
Detection and Identification Using Passive Electronic Support Measures, v12-5
- Advances in Microwave Receiver
Testing
- Airborne Rotary DF Antenna
Systems, v2-2
- Cascading Amplifiers, v16-3
- Cascading Amplifiers, v6-1
- Cavity-Controlled Oscillators
- The Coplanar Mixer, v1-4
- Design of Power Converters for Space
TWA's
- Developing Electron-Bombarded
Semiconductor Amplifiers, v1-1
- Developments in FML
and Miniature Millimeter LNTWA Devices, v1-2
- Digital Transmission of Analog
Signals, v8-5
- Dual Mixers, v13-4
- Local Oscillator Phase
Noise and its Effect on Receiver Performance, v8-6
- Electron-Bombarded Semiconductors,
v3-1
- EMC/TEMPEST Detection
Systems... Test and Measurement Instrumentation, v3-5
- EW Acquisition
Systems... probability of intercept and intercept time, v3-3
- FSK: Signals and Demodulation, v7-5
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- Designing Fast-Switching
PLL Synthesizers, v18-2
- Surface-Mount Component Technology,
v17-3
- System Control of VHF/UHF Receivers,
v12-6
- Fiber Optics for Receivers, v17-
- Millimeter-Wave Block Converters,
v16-6
- Wideband YIG-Tuned Oscillators,
v13-5
- Time Tracking of
High PRF Signals with Bit-Slice Microprocessors, v13-3
- Design Considerations
for Automated RF Test Equipment, v12-2
- Gain of Directional Antennas,
v3-4
- Gain of Directional Antennas (revised),
v3-4
- HF Receiver Design, v5-2
- High Probability of Intercept
Receivers in EW Environments, v12-4
- High Dynamic Range Receiver
Parameters, v7-2
- Image-Reject and Single-Sideband Mixers, v12-3
- Ka-Band YIG-Tuned GaAs Oscillators,
v2-5
- The Laminar Flow Gun CRT, v1-3
- Linear VCOs Linearize Microwave
Sources, v3-2
- Mixers Application Information
- Mixers in Microwave Systems (Part 1), v17-1
- Mixers in Microwave Systems (Part 2), v17-2
- Mixers as Phase Detectors, v5-1
- Mixers: Part 1, Characteristics
and Performance, v8-2
- Mixers: Part 2, Theory and Technology,
v8-3
- A Modern Receiving
System Approach to EMI/EMC/TEMPEST Measurements, v2-6
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- Surface-Mount Devices
Reflow Soldering, v18-1
- Microwave Frequency Synthesizers,
v2-3
- GaAs MMIC Voltage-Controlled
Phase Shifter, v18-4
- Atmospheric
Pressure vs. Low Pressure Chemical Vapor Deposition, v18-3
- Rapid Broadband Signal Acquisition,
v16-2
- Design Considerations
for Miniaturized Receivers, v16-5
- Predicting
Intermodulation Suppression in Double-Balanced Mixers, v10-4
- Automated
Noise-Parameter Measurements Using a Microwave Probe, v16-1
- Developments
in Receiving System Integration Techniques, v13-2
- Modulation
Recognition for Automated Surveillance Systems, v12-4
- PSK Demodulation (Part 1), v11-2
- PSK Demodulation (Part 2), v11-2
- Pulsed X-Ray Tubes Methods and Applications,
v4-4
- Receiver Dynamic Range: Part 1, v14-1
- Receiver Dynamic Range: Part 2, v14-2
- Signal Reception
in a Complex Radar Environment, v3-6
- Time-Domain Receivers
for Pulsed Signals - Part 1, v9-6
- Time-Domain Receivers
for Pulsed Signals - Part 1, v10-1
- Voltage Controlled Oscillators
in Modern ECM Systems, v1-6
- X-Ray Flux from Transmission-Target
Tubes, v2-1
- YIG-Tuned Bulk GaAs Oscillators, v1-5
- YIG-Tuned Integrated Devices, v1-5
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Posted September 14, 2015
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Copyright:
1996 - 2018
Webmaster:
Kirt Blattenberger,
BSEE - KB3UON |
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