Miniature Ferrite Isolators ® TM 18 – 110 GHz ISOLATORS Features ● Models from 18–110 GHz ● Low Insertion Loss ● Good Temperature Performance ● Small Size ● Low Cost Description Microsemi’s Miniature Ferrite Isolators are H-Plane, YJunction devices with similar performance specifications to standard size isolators. Models are available in bands covering center frequencies from 18–110 GHz and feature low insertion loss and high isolation within the specified bandwidth. MMI series isolators are useful in improving the stability of microwave oscillators and amplifiers by projecting matched impedance across the frequency and preventing reverse and reflected power from adversely affecting performance. Specifications @ 25°C Flange Min. Bandwidth (%) Min. Isolation (dB) Max. Insertion Loss Max. SWR (In & Out) UG595/U 10 20 0.3 1.30 40 1.0 WR-28 UG599/U 10 20 0.4 1.30 30 1.0 33.0–50.0 WR-22 UG599/U-M 8 20 0.5 1.30 20 0.8 MMI19599T 40.0–60.0 WR-19 UG599/U-M 7 18 0.6 1.35 5 0.5 MMI10599T 75.0–110.0 WR-10 UG599/U-M 2 18 0.7 1.30 0.2 0.2 Model No. Freq. GHz Waveguide MMI42595T 18.0–26.5 WR-42 MMI28599T 26.5–40.0 MMI22599T Max. Average Power (Watts) Forward Reverse Operating temperature range: -10 to +60°C except: -10°C to +50°C for MI10599. Copyright 2008 Rev: 2008-11-04 Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978 -442-5600, Fax: 978-937-3748 Page 1 Miniature Ferrite Isolators ® TM 18 – 110 GHz ISOLATORS Ordering Information . C A D Model Number MMI 28 599 T Model W/G size Flange Threaded Flange Holes E B M3 Thread Thru From One Side Only 4 Places WAVEGUIDE SIZE A IN/MM B IN/MM C IN/MM D IN/MM E IN/MM WR-42 0.75/19.1 1.50/38.1 090/22.9 0.45/11.4 0.45/11.4 WR-28 0.50/12.7 125/31.8 0.75/19.1 0.38/9.7 0.38/9.7 WR-22 0.50/12.7 125/31.8 0.75/19.1 0.38/9.7 0.38/9.7 WR-19 0.50/12.7 125/31.8 0.75/19.1 0.38/9.7 0.38/9.7 WR-10 1.00/25.4 1.20/30.5 0.90/22.9 0.45/11.4 0.50/12.7 Copyright 2008 Rev: 2008-11-04 MMI isolator part numbers are designated by indicating the center frequency and waveguide size and flange type. For example, the MMI22599T at 33.5 GHz indicates WR22 waveguide, UG599/U-M flange with threaded holes at 33.5 GHz center frequency. For a through-hole flange the part number is MMI22599. Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978 -442-5600, Fax: 978-937-3748 Page 2