valutazioni - 4, GPA: 4.5
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A network’s behavior is linear when (1) a linear change in the input results in a linear change in the output, and (2) the output, resulting from multiple input signals, is the same as the sum of the outputs resulting from independent input signals. Some examples of linear networks are filters, amplifiers, cables and isolators. A network analyzer measurement system can be divided into four major parts shown in Figure 2: 1. A signal source providing the incident signal 2. Signal separation devices to separate the incident, reflected and transmitted signals, and then down converts the microwave signals to a lower intermediate (IF) signal 3. A receiver to attain the IF signal and down convert it to DC 4. A signal processor and display section that processes the data and displays information on a CRT Incident Transmitted Reflected DUT Reflection (Reflected/incident): Input SWR Return loss Input/output impedance Reflection coefficient S-Parameters S11 , S22 Figure 1. Device characterization Transmission (Transmitted/incident): Gain/loss Isolation Insertion phase Group delay S-Parameters S21, S12 DUT Signal separation Source Incident Reflected Transmitted Incident Reflected Transmitted Receiver/Detector Processor/Display Figure 2. Network analyzer configuration The Agilent Technologies 8510 network analyzer consists of a family of compatible products where each part is a separate system component. Each complete system includes the 8510 network analyzer, a test set, and compatible sources (measurement accessories are also needed to complete the measurement setup), shown in Figure 3. The frequency range of the measurement system is determined by the test set or the compatible source’s lesser frequency. Example: if a 50 GHz test set is used with a 20 GHz source, the maximum frequency measured is 20 GHz. 8510 network analyzer Receiver/detectorprocessor/display 8510 VNA system = Test set 851X + + Signal separation Source 8360 Stimulus Figure 3. 8510 measurement systems are made up of modular components, the 8510 network analyzer, a test set and a compatible source. Agilent 8510 family of products Waveguide systems Single-sweep high performance systems 8510E 85108A (50 GHZ) 85108A* 85108L 8510SX 85107B 8510XF 85106D + Test set modules U-band Q-band V-band W-band Combined coax & Waveguide 45 MHz 20 GHz 50 GHz 75 GHz 110 GHz 2 GHz 26.5 GHz * 85108A also available in frequency range of 45 MHz to 20 GHz Figure 4. 8510 family of system solutions Agilent 8510 network analyzer Tables 1 and 2 show the different features of the 8510A, B, and C, hardware and firmware, respectively. Table 1. Hardware revision and measurement capability Product Firmware revisions Hardware features 8510A A.02.00 • Tape drive 8510B B.03.00 to B.06.54 • Tape drive 8510C C.06.00 to present • Large color display • Internal disk drive (LIF or DOS file formats) • 4 S-parameter display Table 2. Firmware revision and measurement capability Revision Time domain1 Pulse2 Power domain Other added key features limit lines A.02.00 • B.03.00 • • • Adapter removal calibration • Direct control of two sources B.03.11 B.04.00 • • Direct control of up to 4 test • 40 GHz test set capability sets • Frequency subset calibration B.05.00 • • B.05.11 • • • Lightwave data format B.06.30 • • • 50 GHz source/test set compatibility B.06.54 • • C.06.00 • • • Color display • Support for hardcopy printer plots C.06.54 • • • Color printer capability C.07.00 • • • • Connector compensation C.07.01 • • • C.07.14 • • • • Y2K compliance C.07.16 • • • • CRT C.08.10 • • • • LCD Agilent 8510 Firmware upgrade kits Figure 5 diagrams which product to order (numbers shown above arrows) to upgrade the existing firmware. For example, to upgrade Rev. C.06.54 to Rev. C.07.XX, order 11575J. Rev. C.06.00 Rev. C.06.50 Rev. C.06.54 Rev. C.07.XX 11575J 11575J 8510C Note: Upgrade kit 11575J has Option 010 (time domain) available. If you currently have time domain, you must order Option 010. Figure 5. 8510 firmware upgrade kits 1. Time domain capabilities require Option 010 on the 8510. Time domain option can be upgraded by ordering 85012C for 8510C. 2. Pulse capabilities require Option 008 on the 8510 working with either 85110L or 85110A pulsed-RF S-parameter test set. Pulse option on the 8510 can be upgraded by ordering 85111B for 8510C. Pulse capability is not available with 8510A or 8510B. Test Sets Table 3. Family of test sets The test set in a VNA measurement system is used to separate the inci-Products Frequency Test set Recommend Recommend Test port dent, the reflected, and the transmitted range (GHz) (application) RF source1 LO source1 connector2 signals. It is also used to convert type needed needed (GHz) (GHz) the RF signal to IF (intermediate fre- quency) signal and to pass the IF 8511A3 0.045 to 26.5 Frequency Converter N/A N/A 3.5 mm (M) to the receiver. 8511B3 0.045 to 50 Frequency N/A N/A 2.4 mm (F) Once signals are separated, their Converter individual magnitude and phase differences can...
Questo manuale è adatto anche per i modelli :Apparecchiature di rete - 8510XF (500.62 kb)