BTI Wireless 1900-160 High Power Multi.Carrier Power Amplifier User Manual

Bravo Tech (Shenzhen) Co. Ltd. High Power Multi.Carrier Power Amplifier Users Manual

Users Manual

Product Operation Introduction LPA1900-160-SC01 V1.0 2009-07-06 Bravo Tech Inc. All right reserved
HISTORY Version Revision description Prepared by Audited by Approved by V1.00 First edition Xiao Hua Gan Cong HaiBao
Content Part A, Summary.........................................................................4 Part B, Connector and definition................................................4 Part C, LED Indication ................................................................ 6 Part D, Specifications .................................................................. 6 Part E, Declare ................................................................................7 Part F, Information to the User ........................................................ 8 Accessory， Sample of Test Procedure ......................................8 1、Test equipment set up .............................................................8 1). Signal generator:............................................................................8 2). Spectrum analyzer:........................................................................8 3). Power meter: .................................................................................9 4). Network analyzer ...........................................................................9 2、 test condition description ........................................................ 9 1). Power supply cables and connectors: .........................................9 3、 Checking item before testing ................................................. 9 4、RF performance test procedure:............................................10 1) Spectrum emission .......................................................................10 2) Gain flatness.................................................................................12 3) Gain Variation & Detect Accuracy & Current consumption............................................................................................................13
Part A, Summary Bravo Tech Inc’s newly introduced High Power Multi-Carrier Power Amplifier platform provides higher downlink EIRP to extend the coverage of existing networks. This multi-carrier based product platform can also work with customized BTS to extend capacity of original BTS with a low system total cost. This product platform features: • Available for UMTS band • Support multi-carrier WCDMA signals, with mixed mode operation • Output maximum power 160W, support carriers number up to 4. • Very High System Efficiency • Extensive product monitoring and control (local and remote) • Centralized system control/display/alarms • Great system reliability supported by architecture built-in redundancy • Powered by 30VDCavailable • Extensive protection for lightning, voltage surge, and any high failure rate assemblies • Compact system size and light weight Part B, Connector and definition Block Diagram of MCPA in system
1、 RF Part Port Name Type Warning Input SMA Female (50Ω) Normal :-6.2dBm Maximum input power +1dBm. Output N Female (50Ω) Normal :52dBm Maximum output power 52.5dBm. 2、 DC power Port Name Type NO Warning A1、A2 VDC type +30V, range 24~32V DC IN D-Sub type DSCD175PS1M (Male) A3、A4 GND to VDC 3、 Communication Connector type: USB Note: Manufacture use to debug.
Part C, LED Indication Figure 1 Power Amplifier Indicators Table 1 Specification of Power Amplifier Indicator Lights Item Label Color State Specification MAJOR ALM Red On MINOR ALM Yellow Off 1 RF ON Green Off Power amplifier alarms and shuts down MAJOR ALM Red Off MINOR ALM Yellow On 2 RF ON Green Off Power amplifier alarms but still works MAJOR ALM Red Off MINOR ALM Yellow Off 3 RF ON Green On Power amplifier works normally Part D, Specifications 1、 Electrical Specifications PARAMETER SPECIFICATION Frequency 1930 ~ 1990 MHz (Band: any 15MHz@customer require, maximal band Δ60MHz) Output Power 160Watts average max. (3FA, PAR：8.0dB), Any location in the BW. <-48dBc @±5MHz <-50dBc @±10MHz @+29~ +31 Vdc @-20℃~+50℃,Po=52dBm(max) Spurious Emission (3G 4Carriers) <-48dBc @±5MHz @+29 ~ +31 Vdc
<-53dBc @±10MHz @+25℃, Po=52dBm(max) RF Gain 57.0 ± 1.0dB @ frequency range, +30Vdc, room temp. Normal Operating Voltage +30Vdc±1.0Vdc Operating Voltage +29Vdc ~ +31Vdc RF Gain Variation over Voltage & Temperature ±1.5dB @ +29≤Vsup≤+31V, -20℃ to +50℃ Gain Flatness Peak to Peak 0.2dB over any 5MHz Input/Output Return Loss <-18dB Output Protection Mismatch protected with isolator Efficiency ≥15%@+30Volts, Po=+52dBm Operating Temperature -30℃ to +55℃ (Air Temperature inside System), Operating point Output power:52dBm ± 0.5dB Operating range 6dB min Input Power ALC Over Power Output Pwr:52.5dBm ± 0.5dB 2. Alarm and Functions Specifications TTL output for the alarm pins. Normal is High, Alarm is Low. 2.1. Over temperature alarm Alarm and shutdown at 95℃ base temperature, auto-recover at 90℃ base temperature. 2.2. Over power alarm Alarm and shutdown when output power is over 52.5dBm, no auto-recover. 2.3. ALC 2.3.1. ALC level: 52±0.5dBm 2.3.2. ALC range: ≥6dB 2.4. VSWR alarm Alarm and shutdown when reject is over 5, auto-recover at 3. Part E, Declare
The device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device not cause harmful interference, and (2) this device must accept any interference received, including interference that many cause undesired operation. Part F, Information to the User This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Changes or modifications not expressly approved by the party responsible for compliance could void to the user’s authority to operate the equipment. This device must be installed by a professional installer. The antenna(s) used for this transmitter must be fixed-mounted on outdoor permanent structures.RF exposure compliance is addressed at the time of licensing, as required by the responsible FCC Bureau(s) including antenna co-location requirements acc to §1.1307(b)(3). Accessory， Sample of Test Procedure 1、Test equipment set up 1). Signal generator: Agilent IFR3413 2). Spectrum analyzer: ROHDE&SCHWARZ FSEA
3). Power meter: Agilent E4418B/E8481A 4). Network analyzer Agilent 8753E or R3765CH 2、 test condition description 1). Power supply cables and connectors: Port Name Type NO DESCRIPTION 1、2 VDC DC IN D-Sub type DSCD175PS1M (Male) 3、4 GND to VDC 2).Alarm ports (D-SUB DSCD175PS1M male connector) Pin#1: N.C Pin#2: BTI (do not contact anywhere) Pin#3: Over power alarm /over driver alarm /transistor fail alarm Pin#4: Over temperature alarm Pin#5: GND Pin#6: RF output power indication Pin#7: BTI (do not contact to anywhere) Pin#8: VSWR alarm Pin#9: Enable/Disable 3、 Checking item before testing No seam on the surface of PA, the position and content of barcodes and labels are right. Check the silk-screen of PA is correct and normal. The connectors of power supply work normally and the poplars of positive and negative are right. RF connectors work normally. Power switch is in the position of turnoff.
Turn on power supply and check the static current whose normal value should be 10A~12A. When the PA works with full power, the current should be 33A~35A. 4、RF performance test procedure: 1) Spectrum emission Test flow chart: Purpose: Check the quality of amplified signal. Test setup list Signal generator: Agilent IFR3413 or the same level instrumentation. Power meter: Agilent E4418B or the same level instrumentation. Spectrum analyzer: R&S FSEA or the same level instrumentation. Power supply: 30V/50A Attenuator: 30dB 500W 1PCS, 20dB 5W 2PCS, Coupler: 60dB frequency range: 1930MHz~1990MHz Signal Generator LPA1900-120-SC01 10dB coupler 30dB Attenuator20dB Attenuator 20dB AttenuatorPower Supply Spectrum Analyzer Power Meter Figure 1 Cable1 Cable2 Cable3
RF cable Instruction 1. Set up the structure according to the figure 1. 2. Signal generator setup: signal type:1. 3G 3Carriers 3FA, PAR：8.0dB 2. ats_3gpp_fdd_fwd_tm1_64ch_sc0_v5pt1 3. Spectrum analyzer setup: RBW→30KHz, VBW→300KHz, Center frequency: 1960MHz, SPAN→40MHz, Sweep time: 1S Spectrum Analyzer’s offset value according the attenuation from PA output to input port of spectrum analyzer. 4. Power meter must to be calibration and set the offset value according to attenuation from PA output to power sensor. 5. Input PA voltage setup +30V. 6. Turn on the signal generator. 7. Than confirm standard ACLR peculiarity.
2) Gain flatness Test flow chart: Purpose: Check the gain at different frequency point. Test setup list Signal generator: IFR3413 or the same level instrumentation. Power meter: Agilent E4418B or the same level instrumentation. Spectrum analyzer: R&S FSEA or the same level instrumentation. Power supply: 30V/50A Attenuator: 30dB 500W 1PCS, 20dB 5W 2PCS, Coupler: 60dB frequency range: 1930MHz~1990MHz RF cable Signal Generator LPA19100-160-SC01 10dB coupler 30dB Attenuator20dB Attenuator 20dB AttenuatorPower Supply Spectrum Analyzer Power Meter Figure 4 Cable1 Cable2 Cable3
3) Gain Variation & Detect Accuracy & Current consumption Test flow chart: Purpose: Check the variation of gain over voltage. Measure the difference between forward power and detect power. Measure the efficiency of PA. Test setup list Signal generator: IFR3413 or the same level instrumentation. Power meter: Agilent E4418B or the same level instrumentation. Spectrum analyzer: R&S FSEA or the same level instrumentation. Power supply: 30V/50A Attenuator: 30dB 500W 1PCS, 20dB 5W 2PCS, Coupler: 60dB frequency range: 1930MHz~1990MHz RF cable Instruction 1. Set up the structure according to the figure 5. Signal Generator LPA1900-160-SC01 10dB coupler 30dB Attenuator20dB Attenuator 20dB AttenuatorPower Supply Spectrum Analyzer Power Meter Figure 5 Cable1 Cable2 Cable3
2. Signal generator setup: 3. Spectrum analyzer setup: RBW→30KHz, VBW→300KHz, Center frequency is 1960MHz, SPAN→40MHz, and Spectrum Analyzer’s offset value according the attenuation from PA output to input port of spectrum analyzer. 4. Power meter must to be calibration and set the offset value according to attenuation from PA output to power sensor. 5. Input PA voltage setup +30V. 6. Turn on the signal generator; adjust the output power from -6.2dBm to -23dBm with -1dB step. 7. Read out the output power from the power meter and do subtractions of each gain and get the gain Variation. 9. Compare the value on the power meter with the value shown on GUI, and then get the accuracy for different frequency range and different carriers.

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