1 To 4 Ghz Linear Rf Biphase Modulator - L3 Narda

Transcript

1 TO 4 GHz LINEAR RF BIPHASE MODULATOR MODULATOR PRODUCTS MODEL: BMA0104LA1MD (Modulation Driven) FEATURES • RF frequency range .................... 1 to 4 GHz • Modulation bandwidth ................ DC to 1 GHz • Biphase accuracy........................ ±1° • Amplitude accuracy .................... ±0.1 dB • Modulator to RF isolation........... 40 dB The unusually high port-to-port isolation of MITEQ’s BMA Series of biphase modulators makes them well-suited for directly modulating microwave carriers in the linear RF or linear IF modulation modes. The latter or carrier driven mode is useful for low BER digital transmission using Gaussian shaped pulses for minimum bandwidth. Optional diodes are available for more output power using proportionally greater input LO or carrier power. TTL drivers are also available (BMT Series). The specifications shown below are for the modulation driven mode (linear RF). An optional model (-CD) can be ordered and tested in the carrier driven or linear modulation mode. ELECTRICAL SPECIFICATIONS INPUT PARAMETERS CONDITION RF frequency range RF power 1.25 to 3.75 GHz RF VSWR UNITS MIN. GHz 1 dBm Noise TYP. MAX. 4 +5 2:1 Ratio IF frequency range GHz DC 1 IF current (antiparallel diode input) mA -10 +10 CONDITION UNITS MIN. 1 to 4 GHz 1.5 to 3 GHz TRANSFER CHARACTERISTICS Biphase accuracy TYP. MAX. Degrees 1 0.5 3 2 Biphase amplitude balance IF = ±10 mA dB 0.1 0.3 Switch loss IF = ±10 mA dB 4 5 RF = +10, IF = Off RF = +10, IF = Off RF = +10, IF = Off dB dB dB 30 35 40 40 CONDITION UNITS MIN. TYP. GHz 1 Isolation RF in to RF out IF in to RF in IF in to RF out OUTPUT PARAMETERS RF frequency range (modulated carrier) 1.25 to 3.75 RF power at 1 dB compression RF VSWR Mode 2 MAX. 4 dBm 0 Ratio 1.5:1 100 Davids Drive, Hauppauge, NY 11788 • TEL: (631) 436-7400 • FAX: (631) 436-7430 • www.miteq.com BMA0104LA1MD MODULATION DRIVEN TYPICAL TEST DATA INPUT/OUTPUT VSWR BIPHASE AMPLITUDE BALANCE 6:1 VSWR (RATIO) 5:1 4:1 3:1 2:1 INPUT OUTPUT 1:1 1 MODULATOR PRODUCTS AMPLITUDE ERROR (dB) 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 1.6 2.2 2.8 3.4 4 1 1.6 FREQUENCY (GHz) INSERTION LOSS (STATIC) 0 INSERTION LOSS (dB) 5 mA 20 2.5 mA 30 0.62 mA 40 310 mA 150 mA 75 mA 36 mA 0 mA 1.2 mA 50 2.2 2.8 3.4 PHASE DEVIATION (DEG.) 10 mA 1.6 2.8 3.4 4 3.4 4 BIPHASE BALANCE 10 1 2.2 FREQUENCY (GHz) 5 4 3 2 1 0 -1 -2 -3 -4 -5 4 1 FREQUENCY (GHz) 1.6 2.2 2.8 FREQUENCY (GHz) MAXIMUM RATINGS Specification temperature ...................... +25°C Operating temperature ............................ -54 to +85°C Storage temperature .............................. -65 to +95°C GENERAL NOTE 1. Linear RF or modulation driven mode (RF = 0 dBm, IF = ±10 mA). NOTE: Test data supplied at 25°C; insertion loss and biphase accuracy. OUTLINE DRAWING .240 [6.10] .31 [7.87] .96 [24.38] .480 [12.19] 2-56 X .10 [2.54] DEEP MTG. HOLES (TYP. 2 PLACES) .200 [5.08] fc FINISH : NICKEL .824 [20.930] .537 [13.640] .098 [2.489] DIA. THRU MTG. HOLES (TYP. 8 PLACES) .287 [7.290] .068 [1.727] .330 [8.38] BLOCK DIAGRAM .200 [5.08] .068 [1.727] .205 [5.207] OPTIONAL SPACER PLATE (IRRIDITE) fm .66 [16.76] .250 [6.35] RF IN TYPE SMA FIELD REPLACEABLE FEMALE CONNECTOR (TYP. 3 PLACES) RF OUT .38 [9.65] TYP. .480 [12.19] MOD IN fc fc m .090 [2.29] NOTE: All dimensions shown in brackets [ ] are in millimeters. 100 Davids Drive, Hauppauge, NY 11788 • TEL: (631) 436-7400 • FAX: (631) 436-7430 • www.miteq.com