1, Introduction E6601A Agilent's next-generation tester platform, designed to Mobile Manufacturers to provide low-cost calibration program (see Figure 1). It uses open- Windows @ XP Platform, users can Tester Directly on the development, download and run the test program, significant savings in space and cost of traditional test systems; its designed specifically for high-speed measurement of a new measurement architecture and industry-leading accuracy, repeatability and measurement integrity, can significantly reduce the phone cost of test; its flexible licensing to enable users to buy the most suited to their manufacturing needs of the licensing options to effectively reduce equipment costs, optimize resource utilization. Figure 1, a new generation of tester platforms Agilent E6601A 2, mobile phone RF calibration Phone RF calibration include Transmitter Power calibration, calibration and voltage-controlled gain receiver Oscillator (VCO) / frequency calibration. (1) trans mitter power calibration is divided into different power levels on the same frequency calibration and a power level on the calibration of two different frequencies, the actual operation, the command cell phone in a specific frequency and power levels up on launch signal, measured by the tester actual phone transmit power, to ensure mobile phones work in the flat band transmission power and the degree of linearity within the dynamic range to meet the design requirements. (2) Receiver gain calibration requirements tester generated at different power levels, frequency of emission standards provisions of the signal, phone signal strength measurements received RS SI, to calibrate the gain of mobile phone to receive access. (3) VCO / frequency calibration can have two methods: Method One is to launch the designated tester frequency signals, cell phone signal to adjust the standard of its VCO; Method Two is to make the phone not with the Network Synchronous firing under the conditi ons specified frequency signal tester measured the frequency error to adjust the phone's VCO. 3, E6835A TD-SCDMA Mobile Calibration Application Following the 2006 Agilent E6601A platform launched in GSM/GPRS/EDGE/W- CD MA / HSDPA / Cdma2000/1xEV-DO calibration applications, the Agilent has introduced the 2007 E6835ATD-S CDMA mobile phone Calibration applications, the following will E6835ATD-SCDMA mobile phones to make a brief calibration applications. (1) multiple flexible signal source function: E6835A TD-SCDMA can generate modulated signals, continuous wave (CW), amplitude modulation (AM), frequency modulation (FM) and bilateral band suppression carrier signal (DSB -SC), for different Chip Calibration of different mobile phone manufacturers needs a strong guarantee. (2) complete measurement functions: E6835A provides a variety of test standards compliance measurement functions such as channel power (with the RRC Filter Power testing and RRC filter without power test), adja cent channel power ratio (ACLR), spectrum spurious (SEM), EVM, frequency error, peak code domain power, spectrum analysis (see Figure 2). Figure 2, the complete measurement (3) In addition, E6835A offers fast mobile transmitter calibration program?? Dynamic power calibration. It can complete the same frequency on a different power level calibration on the transmitter output power, which greatly improved the efficiency of cell phone transmitter calibration (see Figure 3). Figure 3 dynamic power calibration
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