ENGINEERING BULLETIN Sprague-Goodman SG-670B Supercedes SG-670A.1 MICROWAVE TUNING ELEMENTS METALLIC TUNING ELEMENTS Metallic tuning elements have a metal tuning rotor inside a threaded mounting bushing. A thread on the rotor engages an internal thread in the bushing. The rotor threads are slotted across their axis with 2 slots 180° apart. By compressing the probe along its axis, the slots function as a spring. The probe threads are pressed firmly into flank-to-flank engagement with the internal threads of the bushing, eliminating backlash, while providing a uniform adjustment torque that is self locking. Standard models are useful from 2 to 33 GHz. Metallic tuning elements can be used to change the capacitive loading within a waveguide, or any place a metallic tuning probe is required. MODEL NO. GRMB30301SN GRMB30302SN GRMB30602SN GRMB30604SN GRMB50301SN GRMB50604SN GRMB51411SN GRMB70301SN GRMB70403SN A 0.135 0.120 3.43 G C AT MAX TRAVEL F GRMB70505SN ADJUSTING SLOT A D HEX NUT "H" UNS-2 THD 0.04 X 0.04 OPTIONAL BUSHING SLOT 1 1 All dimensions are in / mm. Custom sizes available. GRMB70503SN E GRMB70906SN GRMB71109SN 3.05 0.135 0.120 3.43 3.05 0.135 0.240 3.43 6.10 C D E F G H 0.030 0.156 0.072 0.002 0.035 0.120-80 0.76 3.96 0.075 0.156 1.9 3.96 0.075 0.156 3.96 0.05 0.89 1.8 1.2 0.072 0 0 0.89 0 0.035 0.120-80 3.43 3.76 0 0.89 0.037 0.190-64 3.96 1.8 0.89 0.035 0.120-80 0.148 0.156 0.072 6.10 1.9 1.8 0.072 0.047 0.035 0.120-80 0.135 0.240 1.8 0.210 0.125 0.023 0.220 0.125 0 5.33 0.58 3.18 0 0.94 0.148 0.220 0.125 0 0.037 0.190-64 3.18 0.210 0.250 5.33 6.35 0.210 0.552 5.33 14.0 3.76 5.59 3.18 0 0.94 0.450 0.220 0.125 0 0.042 0.190-64 0 0.267 0.130 0.025 0.280 0.160 0 0.035 0.234-64 6.78 0.64 0 0.89 3.30 0.267 0.187 4.75 0.267 0.210 6.78 5.33 11.4 5.59 3.18 6.78 B B 5.59 7.11 4.06 1.1 0.106 0.280 0.160 0.023 0.031 0.234-64 2.69 7.11 4.06 0.58 0.79 0.106 0.280 0.160 0 0.035 0.234-64 2.69 0 0.89 7.11 4.06 0.267 0.210 0.180 0.280 0.160 0.074 0.035 0.234-64 6.78 4.57 5.33 7.11 4.06 1.9 0.89 0.267 0.360 0.255 0.280 0.160 0 0.145 0.234-64 6.78 6.48 4.06 0 3.68 0.267 0.450 0.345 0.280 0.160 0 0.240 0.234-64 6.78 8.76 0 6.10 9.14 11.4 7.11 7.11 4.06 Notes: 1. Gold plated brass bushings and chromated brass rotors in the sizes shown above are standard. Other sizes and/or materials are available, contact factory. 2. Hardware modifications: 2.1 For slotted bushing, replace “S” in model number by “L”. 2.2 For ring nut (instead of hex nut), replace “N” in model number by “R”. 2.3 For no nut, replace “N” by “F”. 3. Rotor adjusting slot is 0.060/1.5 x 0.016/0.41 for bushings where “H” is 0.120-80, 0.13/3.3 x 0.020/0.51 for bushings where “H” is 0.190-64, and 0.16/4.0 x 0.020/0.51 where “H” is 0.234-64. Sprague-Goodman Electronics, Inc. 1700 SHAMES DRIVE, WESTBURY, NY 11590 TEL: 516-334-8700 • FAX: 516-334-8771 E-MAIL: [email protected] MICROWAVE TUNING ELEMENTS DIELECTRIC TUNING ELEMENTS The use of a dielectric rod (instead of a metallic probe) for the tuning element will provide the lowest loss tuning for high frequency applications. When the dielectric rod is introduced into a microwave cavity it has the effect of making the cavity electrically larger, and lowering the resonant frequency. Dielectric tuning elements are excellent for adjusting the frequency of Gunn diode and IMPATT oscillators. MODEL NO. A GRDA70913SN GRDQ30604SN GRDS30604SN GRDS70503SN GRDS70907SN B C D E F H 0.267 0.629 0.280 0.359 0.525 0.152 0.215 0.234-64 6.78 9.12 3.86 16.0 7.11 13.3 0.135 0.260 0.160 0.240 0.168 3.43 6.10 6.60 4.06 0.135 0.260 0.160 3.43 6.60 4.06 0.062 0.205 0.120-80 4.27 0.240 0.168 6.10 5.46 1.6 5.21 0.062 0.205 0.120-80 4.27 1.6 5.21 0.267 0.219 0.280 0.210 0.115 0.152 0.175 0.234-64 6.78 5.33 3.86 5.56 7.11 2.92 4.45 0.267 0.369 0.280 0.359 0.265 0.152 0.215 0.234-64 6.78 9.12 3.86 9.37 7.11 6.73 5.46 Note: For hardware modifications and adjusting slot sizes see notes on page 1. F A MODEL NO. HEX NUT "H" UNS-2 THD 0.04 X 0.04 OPTIONAL BUSHING SLOT 1 1 E AT MAX TRAVEL GREA21712 GREA41108 All dimensions are in / mm. Custom sizes available. GREA41209 GREA41613 TUNING ROTORS Metallic and dielectric tuning rotors are available for applications in which the user wishes to provide threads in his structure (instead of using a bushing). GREA42319 GREB11310 GREB20301 B METAL D B C D E F 0.062 0.674 0.490 0.020 0.016 0.060 1.6 17.1 12.4 0.51 0.41 1.5 0.152 0.430 0.300 0.010 0.020 0.145 3.86 10.9 7.62 0.25 0.51 3.68 0.152 0.475 0.345 0.010 0.020 0.145 3.86 12.1 8.76 0.25 0.51 3.68 0.152 0.625 0.495 0.010 0.020 0.145 3.86 15.9 12.6 0.25 0.51 3.68 0.152 0.884 0.750 0.010 0.020 0.145 3.86 22.5 19.1 0.25 0.51 3.68 0.040 0.500 0.385 0.020 0.016 0.040 1.0 12.7 9.78 0.51 0.41 1.0 0.072 0.122 0.030 0.020 0.016 0.060 1.8 3.10 0.76 0.51 0.41 1.5 1.8 4.19 1.9 0.51 0.41 1.5 0.060 0.215 0.100 0.020 0.016 0.060 1.5 5.46 2.54 0.51 0.41 1.5 0.072 0.215 0.125 0.020 0.016 0.060 GREB20603 A GREB20604 C ADJUSTING SLOT "E" x "F" A 0.072 0.165 0.075 0.020 0.016 0.060 GREB20402 GREB20503 1.8 5.46 3.18 0.51 0.41 1.5 0.072 0.237 0.147 0.020 0.016 0.060 1.8 6.02 3.73 0.51 0.41 1.5 0.125 0.250 0.148 0.010 0.020 0.120 GREB30604 B D ADJUSTING SLOT "E" x "F" 3.18 6.35 3.76 0.25 0.51 3.05 0.160 0.554 0.450 0.010 0.020 0.145 DIELECTRIC ROD GREB41411 A 4.06 14.1 11.4 0.25 0.51 3.68 0.345 0.370 0.150 0.030 0.060 0.320 GREB90904 C 8.76 9.40 3.81 0.76 1.52 8.13 0.320 0.652 0.372 0.030 0.060 0.320 GREQ81709 8.13 16.6 9.45 0.76 1.52 8.13 0.062 0.300 0.178 0.020 0.016 0.060 All dimensions are in / mm. Custom sizes available. 2 G B D G ADJUSTING SLOT C SG-670B GRES20805 1.6 7.62 4.52 0.51 0.41 1.5 ROD MATERIAL THREAD-2A Alumina Alumina Alumina Alumina Alumina Brass Brass Brass Brass Brass Brass Brass Brass Brass Quartz Sapphire 0.94-80UNS 0.190-64UNS 0.190-64UNS 0.190-64UNS 0.190-64UNS 0.060-80UNF 0.094-80UNS 0.094-80UNS 0.086-56UNC 0.094-80UNS 0.094-80UNS 0.156-64UNS 0.190-64UNS 0.375-64UNS 0.375-64UNS 0.094-80UNS SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 MICROWAVE TUNING ELEMENTS SG-670B DIELECTRIC RESONATOR TUNERS Specifically designed for tuning dielectric resonator oscillators and filters, the rotor of these devices varies the distance between a tuning disk or rod of various materials and a dielectric resonator “puck”. Standard models are compatible with a wide variety of puck diameters and mounting configurations, and operate in the frequency range of 2 to 18 GHz. MODEL NO. GRRB70504SN04 GRRB70504SN05 GRRB70504SN06 GRRB70504SN08 GRRB70504SN09 GRRB70504SN10 GRRB70504SN11 GRRB70504SN13 C AT MAX TRAVEL B 0.020 0.51 G GRRB70904SN04 GRRB70904SN05 E A D GRRB70904SN06 "F" UNS-2 THD GRRB70904SN08 All dimensions are in / mm. Custom sizes available. Notes: 1. Gold plated brass bushings and chromated brass rotors in the sizes shown above are standard. Other sizes and/or materials are available, contact factory. 2. Hardware modifications: 2.1 For 0.04/1 x 0.04/1 slotted bushing, substitute “L” for “S” in model number. 2.2 For ring nut (instead of hex nut), replace “N” in model number by “R”. 2.3 For no nut, replace “N” by “F”. 2.4 To add seal cap, add “C” at the end of the model number for a seal cap without a slot, and “B” for a seal cap with a screw driver slot. 3. Rotor adjusting slot is 0.16/4.0 x 0.020/0.51. GRRB70904SN09 GRRB70904SN10 GRRB70904SN11 GRRB70904SN13 GRRB71104SN04 GRRB71104SN05 GRRB71104SN06 GRRB71104SN08 GRRB71104SN09 GRRB71104SN10 GRRB71104SN11 GRRB71104SN13 A B C D E F G 0.267 0.210 0.16 0.16 0.16 0.234-64 0.175 6.78 5.33 4.1 4.1 4.1 0.267 0.210 0.16 0.20 0.16 0.234-64 0.175 0.234-64 0.175 0.234-64 0.175 0.234-64 0.175 6.78 5.33 4.1 5.1 4.1 0.267 0.210 0.16 0.25 0.16 6.78 5.33 4.1 6.4 4.1 0.267 0.210 0.16 0.30 0.16 6.78 5.33 4.1 7.6 4.1 0.267 0.210 0.16 0.35 0.16 6.78 5.33 4.1 8.9 4.1 0.267 0.210 0.16 0.40 0.16 6.78 5.33 4.1 10 4.1 0.267 0.210 0.16 0.45 0.16 6.78 5.33 4.1 11 4.1 0.267 0.210 0.16 0.50 0.16 6.78 5.33 4.1 13 4.1 0.267 0.360 0.16 0.16 0.16 6.78 9.14 4.1 4.1 4.1 0.267 0.360 0.16 0.20 0.16 6.78 9.14 4.1 5.1 4.1 0.267 0.360 0.16 0.25 0.16 6.78 9.14 4.1 6.4 4.1 0.267 0.360 0.16 0.30 0.16 6.78 9.14 4.1 7.6 4.1 0.267 0.360 0.16 0.35 0.16 6.78 9.14 4.1 8.9 4.1 0.267 0.360 0.16 0.40 0.16 6.78 9.14 4.1 10 4.1 0.267 6.78 0.360 9.14 0.16 4.1 0.45 11 0.267 0.360 0.16 6.78 9.14 4.1 0.267 0.450 6.78 11.4 0.267 0.450 4.45 4.45 4.45 4.45 4.45 0.234-64 0.175 0.234-64 0.175 0.234-64 0.175 0.234-64 0.215 4.45 4.45 4.45 5.46 0.234-64 0.215 0.234-64 0.215 0.234-64 0.215 5.46 5.46 5.46 0.234-64 0.215 5.46 0.234-64 0.215 0.16 4.1 0.234-64 0.215 5.46 0.50 0.16 0.234-64 0.215 13 4.1 0.16 0.16 0.16 4.1 4.1 4.1 0.16 0.20 0.16 6.78 11.4 4.1 5.1 4.1 0.267 0.450 0.16 0.25 0.16 6.78 11.4 4.1 6.4 4.1 0.267 0.450 0.16 0.30 0.16 6.78 11.4 4.1 7.6 4.1 0.267 0.450 0.16 0.35 0.16 6.78 11.4 4.1 8.9 4.1 0.267 0.450 0.16 0.40 0.16 6.78 11.4 4.1 10 4.1 0.267 0.450 0.16 0.45 0.16 6.78 11.4 4.1 11 4.1 0.267 0.450 0.16 0.50 0.16 6.78 11.4 4.1 13 4.1 5.46 5.46 0.234-64 0.210 0.234-64 0.210 0.234-64 0.210 0.234-64 0.210 0.234-64 0.210 5.33 5.33 5.33 5.33 5.33 0.234-64 0.210 0.234-64 0.210 0.234-64 0.210 5.33 5.33 5.33 SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 3 MICROWAVE TUNING ELEMENTS LC TUNING ELEMENTS SG-670B MODEL NO. Variations of the standard metallic units, LC tuning elements are designed specifically for filter applications. These devices provide a fixed post length which is extended by rotating the metallic rotor. A typical application is a direct-coupled TEM mode coaxial configuration. The post length is selected to cover the desired range. A circuit is designed around the tunable post so that each section approximates 76 ohms for optimum resonator Q and high selectivity. GRFB50503SF GRFB50904SF GRFB51204SF GRFB51504SF GRFB71411SF GRFB71806SF C AT MAX TRAVEL 0.047 1.2 ADJUSTING SLOT GRFB72506SF 4.75 D GRFB73109SF 4.75 GRFB74009SF A RESISTIVE TUNING ELEMENTS The use of a lossy rod material for the rotor of the tuning element provides a convenient and effective means of trimming the microwave device in a waveguide or cavity. The amount of power absorbed is a function of the depth of insertion of the rod into the waveguide or cavity. Standard models are ideal for frequencies of 1 to 18 GHz. G E F G H 0.108 0.102 0.072 0.152 0.156-64 0.005 2.74 3.05 1.8 3.86 0.1 0.148 0.120 0.072 0.232 0.156-64 3.76 3.05 1.8 0 5.89 0 0 4.75 3.76 0 12.2 3.05 1.8 5.89 0.187 0.602 0.148 0.120 0.072 0.152 0.156-64 4.75 3.76 15.3 0.265 0.557 14.1 3.05 1.8 0 3.86 0 0.450 0.170 0.125 0.232 0.234-64 11.4 4.32 3.18 0 5.89 0 0.281 0.700 0.250 0.210 0.160 0.232 0.250-64 0 7.14 6.35 0 17.8 5.33 4.06 5.89 0.265 0.882 0.450 0.170 0.125 0.232 0.234-64 0 6.73 11.4 0 22.4 4.32 3.18 5.89 0.281 1.000 0.250 0.210 0.160 0.232 0.250-64 7.14 6.35 25.40 0.281 1.232 31.3 5.33 4.06 0 5.89 0 0.346 0.210 0.160 0.232 0.250-64 8.79 5.33 4.06 0 5.89 0 0.281 1.582 0.346 0.210 0.160 0.232 0.250-64 0 7.14 8.79 0 40.18 5.33 4.06 5.89 Notes: 1. For slotted bushing, replace “S” in model number by “L”. 2. To include a mating nut on the bushing, replace final “F” in the model number by “N” for a hex nut, or by “R” for a ring nut. All dimensions are in / mm. Custom sizes available. B D 0.148 0.120 0.072 0.232 0.156-64 "G" UNS-2 THD OPTIONAL BUSHING SLOT 0.04 X 0.04 1 1 9.02 C 0.187 0.482 7.14 F 4.95 0.187 0.355 H E B 0.187 0.195 6.73 GRFB72211SF B A MODEL NO. GRLE30603SN GRLE30604SN GRLE70906SN A B C D 0.135 0.240 0.130 0.160 3.43 6.10 0.135 0.240 0.168 0.160 3.43 6.10 0.267 6.78 3.30 4.27 4.06 F G H 0.078 0 0.035 0.120-80 2.0 0 0.89 0.062 0.020 0.035 0.120-80 1.6 0.51 0.359 0.250 0.280 0.152 0 0.144 0.234-64 9.12 3.86 0 3.66 6.35 4.06 E 7.11 0.89 Note: For hardware modifications and adjusting slot sizes see notes on page 1. C AT MAX TRAVEL F ADJUSTING SLOT A D E HEX NUT "H" UNS-2 THD 0.04 X 0.04 OPTIONAL BUSHING SLOT 1 1 All dimensions are in / mm. Custom sizes available. SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 4 ©2003 SPRAGUE-GOODMAN ELECTRONICS, INC., ALL RIGHTS RESERVED. PRINTED IN U.S.A. 2.50307