agilent 8471E coaxial rf microwave detectors 0.01 ghz C 12 ghz data sheet features and description ? zero bias ? environmentally rugged ? sma connector the agilent 8471E detector is a planar doped barrier (pdb) detector offering the characteristics of the agilent 8474 line of pdb detectors in an economical package. it is available with an sma rf connector and an smc video connector. the detector is designed for use in rf and microwave instrumentation and systems applications as the detecting element in leveling loops, for power monitoring and for wideband video detection. 1000 100 10 1 0.1 0.01 C30 C20 C10 0 10 20 output voltage (mv) input power (dbm) 50k ? 1k ? 200 ? 30 ? figure 1. typical transfer characteristics figure 2. typical tangential sensitivity figure 3. typical output response with temperature (p in 20 dbm). figure 4. typical video impedance variation with temperature. figure 5. typical square law deviation 100000 10000 1000 100 10 C60 C20 0 20 60 100 r v (?) temperature (oc) C25 C30 C35 C40 C45 C50 C55 C60 10 3 10 4 10 5 10 6 10 7 tangential sensitivity (dbm) bandwidth (hz) t a = 25 oc t a = 100 oc t a = C60 ampli?er nf = 3 db 8 db s/n ratio 10 5 0 C5 C10 0 2 4 6 8 10 12 14 16 18 20 % variation in db from output @ C20 dbm rf input rf power (dbm) 2 ghz 8 ghz 12 ghz 4 2 0 C2 C4 C6 C60 C40 C20 0 20 40 60 80 100 response (db) temperature (oc) 50k ? 10k ? 1k ? 0.1k ?
microsoft is a u.s. registered trademark of microsoft corporation. www.agilent.com www.agilent.com/? nd/mta for more information on agilent technol- ogies products, applications or services, please contact your local agilent of? ce. the complete list is available at: www.agilent.com/? nd/contactus americas canada (877) 894-4414 latin america 305 269 7500 united states (800) 829-4444 asia paci? c australia 1 800 629 485 china 800 810 0189 hong kong 800 938 693 india 1 800 112 929 japan 0120 (421) 345 korea 080 769 0800 malaysia 1 800 888 848 singapore 1 800 375 8100 taiwan 0800 047 866 thailand 1 800 226 008 europe & middle east austria 01 36027 71571 belgium 32 (0) 2 404 93 40 denmark 45 70 13 15 15 finland 358 (0) 10 855 2100 france 0825 010 700* *0.125 /minute germany 07031 464 6333 ireland 1890 924 204 israel 972-3-9288-504/544 italy 39 02 92 60 8484 netherlands 31 (0) 20 547 2111 spain 34 (91) 631 3300 sweden 0200-88 22 55 switzerland 0800 80 53 53 united kingdom 44 (0) 118 9276201 other european countries: www.agilent.com/? nd/contactus revised: october 6, 2008 product speci? cations and descriptions in this document subject to change without notice. ? agilent technologies, inc. 2009 printed in usa, february 17, 2009 5952-0802e speci? cations frequency range: 0.01 - 12 ghz frequency responses: 0.23 db (0.01 - 4 ghz); 0.6 db (4 - 8 ghz); 0.85 db (8 - 12 ghz) swr: < 1.2 (0.01 - 4 ghz); < 1.7 (4 - 8 ghz); < 2.4 (8 - 12 ghz) low level sensitivity: 0.4 mv/w max. operating input: 200 mw typical short-term max. input: 0.75 watt noise: < 50 v (v peak-to-peak with cw power applied to produce 100 mv output, 400 khz bw) output polarity (std): negative (003): positive note: above speci? cations are at 25 oc and 20 dbm unless otherwise speci? ed. environmental operating temperature: C20o to +85 oc non-operating temperature: mil-std 883, method 1010: (C55o to +85 oc) vibration: mil-std 883, method 2007: (0.6 d.a. 20 to 80 hz and 20 g, 80 to 2000 hz) shock: mil-std 883, method 2002.1: (500 g, 0.5 ms) altitude: mil-std 883, method 1001: (50,000 ft, 15,240 m) moisture resistance: mil-std 883, method 1004.1: (25o to 40 oc, 95% rh) rfi: mil-std 461c (meets part 7, degraded by 10 db) typical values: r v (diode video impedance) 1.5 k * c b (rf bypass capacitor) 30 pf nominal t r (10 to 90% risetime) 2.2 (r load )(r v ) (c b + c load ) = 0.35 r load + r v bw * @ 25 oc and p in 20 dbm (see figure 3) agilent 8471E figure 6. equivalent circuit for agilent 8471E with typical parameter values. equivalent diode r v , diode video impedance rf in video out c b , rf bypass capacitor v 50 ? a b c rf connector video connector smc (male center conductor) figure 7. agilent 8471E a: 7.9 (0.31) b: 39.16 (1.54) c: 9.26 (0.36) connector: sma (m) input smc (m) output net weight: 38.8 grams (1.37 oz.)
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