An atomic clock operates on atomic oscillations, and thus is said to be the most precise. Wavetek 907 repair, yig oscillator teardown kerry wong. Yig is listed in the worlds largest and most authoritative dictionary database of abbreviations and acronyms the free dictionary. Yig is a very interesting microwave material with properties that can be substantially modified by the application of a strong magnetic field. View and download agilent technologies 8564ec service manual online.
One particular device of interest is the spin toque oscillator, which is a nanoscale source of microwave power. Yig tuned oscillators exhibit a low level of phase jitter, and their broadband characteristics from approximately 2. If you have your yig oscillator out of the rf deck, reconnected to the power. Strong coupling of magnons in a yig sphere to photons in a. Yttriumiron garnet yig is a ferrimagnetic garnet with extremely low magnon. Moloss multi oscillator linear open source synthesizer is a virtual synth, available as a vst plugin or standandalone exe, to build analog vintage sounds by combining several techniques used in the 80s. In a typical yig oscillator the total magnetic field is obtained with. This additional material on yig technology just in from james, a semiconductor guy with some rf test experience. The 6 ghz rf downconverter is a wideband frequency converter using a yig oscillator as its tunable rf lo.
Insidepenton com electronic design adobe pdf logo tiny. Another yig application is yig oscillators, where the sphere acts as a tunable frequencydetermining element. Aug 03, 2014 wavetek 907 repair, yig oscillator teardown. The oscillators also has panning, and can produce one of four waveforms. For instance, using a sttnanooscillator in a nanocontact geometry. As major frequencydetermining component yig single crystals are applied. Pdf format this file type includes high resolution. With input rf frequency ranging from dc to 6 ghz, the modules have selectable if bandwidths of. A simple approach tyo yig oscil linkedin slideshare. The superb linearity of these oscillators is contributed by the ideal design of the magnetic circuit and the coupling technique used between the yig sphere and the. Looking for online definition of yig or what yig stands for. However, we radio amateurs have been prohib ited from enjoying their outstanding characteristics for many years, owing to the high prices involved. With a 30 year heritage in yig technology, tms has unsurpassed capabilities as your single source for yig oscillators and offers best in industry low phase noise.
Although the common gate fet yig oscillator has be tter phase noise than most other technologies e. Part of our product reengineering group focuses exclusively on rhythm assemblies for the agilent hp 8560 series spectrum. For the setup of such components magnetically tunable resonators are being deployed. It is coupled to an amplifier which provides the required feedback for oscillation.
Print version of this book pdf file oscillator core examples. Request pdf yigtuned oscillator design on printed circuit board using surface mount technology previously most of microwave circuits were designed based on thin film or thick film. An oscillator is an electronic or mechanical device that produces regular oscillations in the form of electrical or mechanical energy. Raditek providing high quality, low cost wireless and microwave products. In this study, a spin torque oscillator based on the insulating material yttrium iron garnet yig is produced to study the eects of pure spin currents. This resonator is coupled to a lownoise active device to create an oscillator. List the two broad classifications of oscillators wave generators. Yig single crystals are most commonly used for the construction of electronically tunable oscillators yig oscillator and filters. Agilent technologies 8564ec service manual pdf download.
The yig sphere technology has been used for microwave oscillators for more than 25 years, but has two significant areas of difficulty in applications the. I have absolutely no data on it other than the pinout and operating voltage, which the seller was kind enough to include. Core element is a small yig sphere, placed in a magnetic field. Avantek k band yig oscillator yo ghz with isolator ebay aantek satisfied that the module would behave somewhat as expected, i hooked it up to a spectrum analyzer. Coates 200720 frequency control in rf oscillators several different types of frequency control networks are used in high frequency sine wave. Tms has both inhouse and offshore yig manufacturing capabilities to control costs and meet stringent capacity and deliver requirements for nonitar products. A wide band, low phase noise, differential yig tuned oscillator. Gigatronics has 30 years of design experience to support your custom yig tuned oscillator and driver applications. The collector voltage is in phase with the input for a common base configuration. Yig oscillators have been in use for several decades now, mainly in relation to equipment for professionals from wellknown manufacturers. We did not publish schematics for these microcircuits.
Although the common gate fet yig oscillator has be tter. For frequency control and timing applications a tutorial. Hp 8560e spectrum analyzer yig yto a11 questionproblem. Pdf format this file type includes high resolution graphics and schematics when applicable. Video worlds simplest single transistor oscillator bjt with negative resistance. An improved ultralowphase noise tunable yig oscillator operating. The 6 ghz rf downupconverter is a triplestage frequency converter using a yig oscillator as its. For instance, in the third circuit with the gateconnected yig, the cdg parasitic is a vital part of the oscillator, making it rather clappcolpitts, if you consider the coupling to the yig as a series connected lc.
Although both these oscillators oscillator use an lc tuned tank circuit to control the oscillator frequency, the hartley design can be recognised by its use of a tapped inductor l1 and l2 in fig. Yig tuned oscillators provide the lowest phase noise for broadband microwave applications. Fabrication of nanoscale spin torque oscillator based on. In an rc oscillator circuit, the filter is a network of resistors and. It has interesting magnetic properties which allow it to perform as a tunable microwave filter for example. Figure 20 a yig resonator placed between poles of an electromagnet. Part of our product reengineering group focuses exclusively on rhythm assemblies for the agilent hp 8560 series spectrum analyzers. The yig ball, which sits at the tip of a short ceramic rod, is positioned in the middle of a coupling coil u bolt. This oscillator uses an lc resonator to set the oscillation frequency and a capacitive divider to establish the loop gain.
Spin caloritronic nanooscillator nature communications. Maybe one of the keysight members can give you a download from the component level instruction package clip for the a14 board. This page was last edited on 19 february 2019, at 18. The method is simple in structure and low in price, but introduces a certain degree of nonlinearity. A wide band, low phase noise, differential yig tuned. Wikipedia is not that encyclopedic on rf engineering, it doesnt give an exhaustive list of available rf oscillator configurations. A yig tuned oscillator consists of a yig sphere mounted on a rod that is positioned inside of a magnetic field. Notes on stellex yig synthesizer performance and control. Phase locked loop ku band frequency synthesizer based on a. Replacing yigtuned oscillators with silicon by using an.
This paper presents a novel, wideband, and lownoise differential yttrium iron garnet yig tuned oscillator. Although both these oscillators oscillator use an lc tuned tank circuit to control the oscillator frequency, the hartley design can be recognised by. Jii packard slide 10 tunable oscillators vco and yig tunable oscillators lnp. Its 4 voices mix subtractive synthesis, additive synthesis, frequency or actually phase modulation, cross modulation, to allow a very wide sound range, with a lightweight cpu load. It mentions yig oscillator application note and vendorsmanufacturers of yig oscillator.
The sc5407a and sc5408a are high performance, triple stage, heterodyne upconverters. The common gate fet oscillator circuit is the most common yig oscillator topology. Oscillators pdf file oscillators pdf file oscillators pdf file download. Files are available under licenses specified on their description page. This will usually be a voltage amplifier and may be biased in class a, b or c. The magnetic field is generated by either a permanent or electromagnet. Tms yig products support radar, communications, ecm, laboratory instrumentation, commercial and military markets and applications. The story of how yig behaves is quite beyond the scope of this document, but it is highly interesting for. Modernday computers, clocks, metal detectors, watches and microcontrollers all utilize oscillators. Yig oscillators have been in use for several decades now, mainly in relation to equipment for. Thus, the frequency of the oscillations can be adjusted with a current that feeds the electromagnet. All amateur radiorelated projects, tips, tricks, and tools. A yigtuned oscillator consists of a yig sphere mounted on a rod that is positioned inside of a magnetic field. It is a circuit that produces a repetitive waveform on its output with only dc supply as input.
Tms yig products support radar, communications, ecm, laboratory instrumentation, commercial. So, i bought a microlambda yto on ebay, advertised as 28 ghz. For a digitally controlled yig oscillator and filter, a driver is needed that can convert serial data from a microcontroller to a well defined, stable, and low noise current. The design procedure results in the maximization of the oscillator. Microwave synthesizer modules yigtuned filters yig. Designs covering frequency ranges from 500 mhz to 44 ghz in either narrow band or wide band con. Including all types of yig tuned oscillators, yig, yig tuned, ryto.
Download fluent oscillator simple tool for generating basic audio signals sine, saw, circle, rectangle and triangle that can be easily adjusted to the users needs. Also included is the tuning voltage driver, fm driver, and alc circuitry directly related to that particular module fig. Yig tuned oscillator yto yig tuned filter ytf driver. I sourced for an alternative yig that should be a close match 50867259 yig oscillator. Yig is a ferrite with very high resistivity and a sharp ferrimagnetic resonance. Wavetek 907 repair, yig oscillator teardown kerry d.
The goal is to determine the conditions where the open. The disadvantages of yig oscillators include high power consumption, large size, and relatively. Including all types of yig tuned oscillators, yig, yig tuned, ryto, ryad, rydd, analog driver, digital driver. As i mentioned in my previous posting, there was an issue with my wavetek 907 microwave. This high q characteristics provides very low phase noise and multioctave frequency tuning. Yigtuned oscillator design on printed circuit board using. This paper presents the improvement of a conventionally designed stateoftheart yttriumirongarnet tuned oscillator with the main focus on the minimizat. Inverse spin hall effect in nanometerthick yttrium iron. Williams, a leader in the selfeducation of investors first began trading in 1959. It is based on a sige monolithic microwave integrated circuit and a transmissiontype. Yto yig tuned oscillator and yig yttriumirongarnet. Yig filters tuned by a sweep current are used in spectrum analyzers. While everything was fine during my initial testing, the frequency display is now stuck with an outofrange display and the adjustable frequency range is limited to. His background in engineering, physics, psychology and integration of mind and body has created a unique way of looking at the markets.
This yig resonator is influenced by the magnetic field that is generated by the tuning coils. The intensity of this field determines the frequency that the yig sphere resonates. As i mentioned in my previous posting, there was an issue with my wavetek 907 microwave frequency generator. Some active devices like diode and transistor have zone of negative resistance that can be used to amplify the feedback loop of an oscillating circuit. Using advanced wideband pll architectures, a lowcost, fastswitching voltagecontrolled ocscillator vco offers an excellent alternative to commonly used yig oscillators for the majority of practical applications. Oscillator design using modern nonlinear cae techniques fliohewlett 3 i. Yig filters and oscillators from teledyne microwave solutions teledyne microwave solutions tms has a long history of supplying yig products and is known as the industrys leading supplier. The 6 ghz rf downconverter is a wideband frequency converter using a yig oscillator as its. If you have your yig oscillator out of the rf deck, reconnected to the power cable and turned on. Figure 1 illustrates a typical yig oscillator magnet. Generation of coherent spinwave modes in yttrium iron garnet. The basic form of a harmonic oscillator is an electronic amplifier connected in a feedback loop. The outstanding feature was the detection of autooscillation of the yig when enough dc current was passed in the pt. Hi pete b the 50867500 is a dual yig oscillator that is a sealed microcircuit and is not field repairable.
Yig oscillator basics yig oscillator app note,vendors. But the noise performance of a vco is considerably worse than that of a yig oscillator, which may restrict using a vco in highperformance designs. This makes the modules tuning behavior more like the next lower range, for example the av simonsdialogs a wild collection of random thoughts, observations and learnings. Request pdf yig tuned oscillator design on printed circuit board using surface mount technology previously most of microwave circuits were designed based on thin film or thick film. Oscillator cores cclappcore, chartleycore, cmodifiedclappcore, and cmodifiedcolpittscore are compatible with simulation and measurement setups outlined by the generic oscillator example. Yig filters and oscillators from teledyne microwave solutions. Theyre intended for use with the stellexendwave 6755725f and 6755726f ytos, also widely available on ebay, but are easily modified for use with other yto models. At national test equipment we have a highly experienced team dedicated to some of the most intense microwave component repair imaginable. All structured data from the file and property namespaces is available under the creative commons cc0 license.