B3JC1008 S-Band Junction Circulator DESCRIPTION Mechanical The B3JC1008 is a small and lightweight S-band, E-plane flange circulator with 7/8-inch EIA coaxial output at one port. It is designed for use in marine radars and provides isolation of the receiver protector from the transmitter. Waveguide ...................................................................WG10 72.14 x 34.04 mm Material ....................................................... Aluminium HE30 Environmental SPECIFICATION Electrical Frequency range....................................... 3030 to 3070 MHz Return loss ports 1 and 2 (see note 1)................... 20 dB min Insertion loss........................................................ 0.3 dB max Isolation ................................................................. 20 dB min Power handling (see note 2) .............................. 30 kW peak, pulse length 1 ms, prf 1000 pps Operating temperature range............................-25 to +80 C NOTES 1. Return loss specified over ambient temperature range 10 C to 30 C. Other ports terminated with VSWR 1.1:1 maximum. 2. Output port terminated with VSWR 2:1 maximum, isolated port terminated with any VSWR, including full short circuit, in any phase. OUTLINE (All dimensions without limits are nominal) Outline Notes 1. Positional tolerance of holes 0.2 mm diameter with respect to waveguide dimensions. 2. M5 holes are located in Port 3 flange only. Ref A B C D E F G H J K L M N Millimetres 120.0 60.0 14.0 35.0 120.0 65.08 43.0 103.18 42.0 25.5 57.2 63.5 10.0 min Whilst e2v technologies has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use thereof and also reserves the right to change the specification of goods without notice. e2v technologies accepts no liability beyond the set out in its standard conditions of sale in respect of infringement of third party patents arising from the use of tubes or other devices in accordance with information contained herein. e2v technologies (uk) limited, Waterhouse Lane, Chelmsford, Essex CM1 2QU United Kingdom Telephone: +44 (0)1245 493493 Facsimile: +44 (0)1245 492492 e-mail: enquiries@e2v.com Internet: www.e2v.com Holding Company: e2v technologies plc e2v technologies inc. 520 White Plains Road, Suite 450, Tarrytown, NY10591 USA Telephone: (914) 592-6050 Facsimile: (914) 592-5148 e-mail: enquiries@e2vtechnologies.us (c) e2v technologies (uk) limited 2009 Template: DF764388A-1 M766266A Version 1, January 2009 105469