|
|
|
 |
 |
Available References
 US Patent documents
are available free from United
States Patent and Trademark Office. (You will need to
install a TIFF viewer to view page images - see the USPTO images help page) US Patents are public
domain documents and so, for convenience, some are reproduced
here in an online readable form. If you want to keep a copy of
a patent document, note that the originals from USPTO are of
higher resolution than those available here.See also: http://www.google.com/patents which permits searching of OCR versions of old Patents. ARRL Periodicals
QST, QEX, Ham Radio, Communications Quarterly (CQ) can be purchased
on CD ROM from ARRL.org. |
General: BR230
Appendix A: The Decibel and the Neper. "Radio
Antenna Engineering" by Edmund Laport (1952). PDF version
created by Dave Platt AE6EO available free from http://snulbug.mtview.ca.us/books/RadioAntennaEngineering/
.Inductance and Inductors: Medhurst
1947: H. F. Resistance and Self-Capacitance of Single-Layer
Solenoids. Nagaoka
1909: The Inductance Coefficients of Solenoids. Rosa
1908: The Self and Mutual Inductances of Linear Conductors.[see also "Inductance of a Straight Wire", by Tim Healy] Rosa
& Grover 1911: Formulas and Tables for the
Calculation of Mutual and Self Induction.Bridges, Directional Couplers, Indicators, Automatic Z Matching: US Pat. 1454011.
Blackwell 1923. System for Attaining Uniform Attenuation. US
Pat. 2134589. Stanek 1938. Apparatus for Measuring High-Frequency
Alternating Currents. US Pat. 2157006.
Oestinghaus 1939. Current and Voltage Responsive Apparatus. US
Pat. 2165848. Gothe, Buschbeck, Kautter 1939. Protection
of High Frequency Lines. US Pat. 2191271.
Carter 1940. Means for making impedance measurements at high
radio frequencies. US Pat. 2214915.
Wehrlin 1940. High Frequency Current Transformer. US Pat. 2238298.
Wehrlin 1941. High Frequency Current Measuring Device. US Pat. 2278687.
Brown 1942. Radio frequency wattmeter US Pat. 2285211.
Korman 1942. Radio frequency Wattmeter [Improvement to USP
2278687, uses CVS with compensation resistor]. US Pat. 2297255.
Schulze-Herringen, Gutzmann 1942. Phase Control in High Frequency
Coupled Circuits. US Pat. 2344641.
Rosencrans 1944. Radio Frequency Wattmeter. US Pat. 2362372.
Halfmann 1944. Apparatus for Measuring Alternating Current
in the Conductors and/or Sheaths of Electric Cables. US
Pat. 2365207 Moles 1944. High Frequency Thermocouple. US Pat. 2412393.
Ghosh 1946. Reflectometer correction network [Improvement
to USP 2423416]. US Pat. 2415799.
Reifel, Crandell 1947. Automatic Means for Controlling the
Power fed to an Oscillator Load. US Pat. 2423390.
Korman 1947. Reflectometer for Transmission Lines and Wave
Guides. US
Pat. 2423416. Sontheimer, Korman 1947. Non-Frequency-Selective
Reflectometer. US
Pat. 2467648. Alexander 1949. Transmission Line Energy
Indicator. US Pat. 2511026.
Wadhams, Sateren, Sikorski 1950. Method for Controlling Heating
by an Induction Heating Circuit. US Pat. 2588390.
Jones 1952. High-Frequency Power Measuring Device. US Pat. 2611030.
Sontheimer 1952. Energy Transfer System. US
Pat. 2734169. Douma 1956. Directional Apparatus for use
with HF Transmission Lines.
Analysis of Douma's generator
power-factor correction scheme. US Pat. 2745067.
True, Fisk 1956. Automatic Impedance Matching Apparatus. US Pat. 2788396.
Abraham 1957. Balancing Arrangement. US Pat. 2797387.
Adams, Horvath, Parzen 1957. Standing Wave Ratio Monitor. US
Pat. 2808566. Douma 1957. Directional Apparatus for use
with HF Transmission Lines. US Pat. 2834887.
Brown 1958. Control Systems for Matching Impedance Networks. US Pat. 3020529.
Turner 1962. Reflected Power Alarm for a Variable Power Output
Antenna System. US Pat. 3048798.
Simons 1962. Directional Coupler. US Pat. 3145338.
Downs 1964. Combination Transmission System Phase and Impedance
Sensor Having a Single Centre-Tapped Probe. US Pat. 3281721.
Clark 1966. Impedance Matching System. US Pat. 3369128.
Pearlman 1968. Logarithmic Function Generator. US
Pat. 3426298. Sontheimer, Fredrick 1969. Broadband Directional
Coupler. US Pat. 3443231.
Roza 1969. Impedance Matching System. US Pat. 3683274.
Martin 1972. Lumped Component SWR Indicators for RF Transmission
Lines. US Pat. 3704409.
Oomen 1972. Digital Reflection Coefficient Detector. US Pat. 3715690.
Young, Radler 1973. Automatic Tuning Electric Wave Filter. US Pat. 3716806.
Zelenz 1973. Signal Coupling Apparatus Utilizing Hybrid Transformer, US Pat. 3794941.
Templin 1974. Automatic Antenna Impedance Tuner Including
Digital Control Circuits. US Pat. 3798574.
Workman 1974. Directional Coupler Having Directly Connected
Taps. US Pat. 3835379.
Templin 1974. Detector Circuits for Signal Transmission. US Pat. 3919643.
Templin 1975. Phase Sensor Circuit. US Pat. 3919644.
Smolka 1975. Automatic Antenna Coupler Utilizing System for
Measuring the Real Part of the Complex Impedance or Admittance
Presented by an Antenna or Other Network. US Pat. 3995237.
Brunner 1976. Automatic Matching Method and Apparatus. US Pat. 4011529.
Garcia 1977. Directional Power Detector for Propagating Waves. US Pat. 4015223.
Chezé 1977. HF Antenna Matching Device. US Pat. 4028645.
Tressa 1977. Automatic Impedance Matching Using Resistive
and Reactive Diodes. US Pat. 4041395.
Hill 1977. Transmitter Performance Monitor and Antenna Matching
System. US Pat. 4075554.
Mecklenberg 1978. VSWR Meter Circuit Using Variable RF Attenuator. US
Pat. 4110685. Leenerts 1978. Standing Wave Ratio Measurement
Instrument. US Pat. 4156842.
Huang, Brooks 1979. Immitance [i.e., Impedance / Admittance]
Measurement with High-Frequency Injection and Electromagnetic
Coupling. US Pat. 4234960.
Spilsbury, Spilsbury 1980. Antenna Automatic Tuning Apparatus. US Pat. 4283794.
Underhill, Lewis 1981. Measuring Radio-Frequency Impedance. US Pat. 4285346.
Armitage 1981. Electrode System. US Pat. 4356458.
Armitage 1982. Automatic Impedance Matching Apparatus. US Pat. 4463308.
Underhill 1984. R.F. Impedance Determination. US Pat. 4493112.
Bruene 1985. Antenna Tuner Discriminator. US
Pat. 4739515. Herzog 1988. Voltage Standing Wave Ratio
Bridge Measuring Circuit.
Analysis of Herzog's current-transformer
LF-compensation method. US Pat. 5150063.
Burkhard 1992. Bridge for Measuring the Reflection Coefficient. |
 See also: Links page. |
|
|
|
|
|
|