Tunable bandpass filter
US-9515362-B2 · Dec 6, 2016 · US
Method for minimizing center frequency shift and linearity errors in yig filters
US2020373645A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020373645-A1 |
| Application number | US-202016876205-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 18, 2020 |
| Priority date | May 20, 2019 |
| Publication date | Nov 26, 2020 |
| Grant date | — |
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Abstract
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A method for minimizing center frequency shift and linearity errors encountered in YIG filters, comprising the following steps: automatically generating data packages in test unit depending on the user request or containing all filter characteristic states and transmitting them to the driver circuit, adjusting the desired voltage level by means of the digital to analog converters contained in the structure of the data packages received by the driver circuit, and transmitting the adjusted voltage level to the YIG filter, measuring filter characteristics (scattering parameters) corresponding to the data packages transmitted to the YIG filter in the analyser, in order to calculate the center frequency shift of the filter, determining the center frequency and linearity calculations, and recording the characteristic features measured by the analyser in the test unit.
First claim
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What is claimed is: 1 . A method for minimizing a center frequency shift and linearity errors encountered in a YIG filter, comprising the following steps: a) automatically generating data packages in a test unit depending on a user request or containing filter characteristic states and transmitting the data packages to a driver circuit; b) adjusting a predetermined voltage level to obtain an adjusted voltage level by means of digital to analog converters contained in a structure of the data packages received by the driver circuit, and transmitting the adjusted voltage level to the YIG filter; c) measuring filter characteristics corresponding to the data packages transmitted to the YIG filter in an analyser in a plurality of time periods, to calculate the center frequency shift of the YIG filter, and determining the center frequency shift and the linearity errors; d) recording the filter characteristics measured by the analyser in the test unit, e) recording updated characteristic filter values recorded in calibration tables in the test unit based on the plurality of time periods; f) determining a plurality of control voltage-center frequency regions for the filter characteristics based on the data packages recorded in the test unit and then using the data packages corresponding to a frequency-characteristic, wherein an operator uses the YIG filter at the frequency-characteristic.
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Classifications
- H01P11/007Primary
Manufacturing frequency-selective devices (resonators H01P11/008) · CPC title
- H01P1/218Primary
the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters · CPC title
Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00 · CPC title
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- What does patent US2020373645A1 cover?
- A method for minimizing center frequency shift and linearity errors encountered in YIG filters, comprising the following steps: automatically generating data packages in test unit depending on the user request or containing all filter characteristic states and transmitting them to the driver circuit, adjusting the desired voltage level by means of the digital to analog converters contained in t…
- Who is the assignee on this patent?
- Aselsan Elektronik Sanayi Ve Ticaret As
- What technology area does this patent fall under?
- Primary CPC classification H01P11/007. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 26 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).