Historical Milestones
| 1951 Sivers Lab AB was founded in Stockholm by the engineer Carl von Sivers. Mechanically related microwave products. Slotted line VSWR detector for professional use | ![]() |
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1960 Sivers Lab AB was bought by Philips, Sweden. Training kit for Technical High Schools and Universities |
| 1975 IMA AB was founded in Stockholm. Microwave, hybrid products. High stability Local Oscillators for ground and aircraft radars | ![]() |
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1983 IMA was purchased by Philips, Sweden and merged with Sivers Lab. New name Sivers IMA. YIG filters (and oscillators) |
| 1990 SI Holding AB was created for a management buy-out of Sivers IMA from Philips in order to be able to approach the market as an independent supplier. Front end for level gauging (X band FMCW) | ![]() |
| 1998 Sivers IMA acquires Lyscom, Lysekil/Sweden, who develop and produce filter/coupler products and subsystems for microwave radio and satcom front ends. Waveguide Diplexer — Satcom Ku band | ![]() |
| 2003 Sivers IMA re-focus and expand the portfolio to also include solutions for the military market. Oscillators for receivers in UAV:s | ![]() |
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2004 Sivers IMA introduce a family of low phase noise VCO. The oscillator can directly replace bulky microphony sensitive DRO:s. Low phase noise oscillator |
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2004 Sivers IMA Open a US sales office |
| 2006 Sivers IMA introduce a familly of ultra wideband VCOs 2-20 GHz. By using the latest MMIC technology it has been possible to design a very small unit. | ![]() |















