1. EMBRACE receiver 8th SKADS Board Meeting Château de Limelette, Belgium, 3 November 2009 DS5 EMBRACE IRA&ASTRON DS5 Eng. Group Presentation by Jader Monari j.monari@ira.inaf.it

2. The EMBRACE RECEIVER is high performance 400- 1600MHz tunable double down conversion unit to 100- 200MHz IF bandwidth. The architecture, LO frequencies and RF, IF amplifiers/ filters have been selected to provide optimal noise figure, intermodulation products, dynamic range and spurious free performance. An High Selectivity Filter bank is provided to avoid undesired interferences and increase the dynamic performances. To select the right filter a control signal TTL/Open collector/dip Switched must be provided. This receiver includes PAD attenuators and equalization stages to flat the received bandwidth as better as possible. General Description

3. RF 400-1600MHz IF 100-200MHz LO1 2600-1400MHz LO2 2850MHz Double Conversion Input ports ESD protected with inductor RF/IF1 equalizazion RF High Selectivity Filter bank TTL/OC/Dip Sw controls Low Power for driving LO Typ 2dBm No OL Phase Noise degradation High Reliability Substrate FR4, 1.6mm, 1Oz. Cu Eurocard Standard Dimension (160x100) Main Feature

4. 3000/Bw100150/Bw100 LO:2850 LO: 2600…1400 HighBand 1300/Bw600 MidBand 1000/Bw600 LowBand 700/Bw600 WideBand 1000/Bw1200 INPUT 400…1600 OUTPUT 150 Functional Block Diagram

5. Schematic Diagram

6. ParametersUnitsMinimumTypicalMaximum RF FrequencyMHz500-1500400-1600 Input noise density dBm/Hz-151 RF Return LossdB1115 LO1 FrequenciesMHz1500-25002600-1400 LO1 Return lossdB915 LO1 Drive PowerdBm025 LO2 FrequencyMHz2850 LO2 Return LossdB14 LO2 Drive PowerdBm026 ParametersUnitsMinimumTypicalMaximum VccV101215 ImA370450 Ripple RejectiondB59@50Hz Vcc=10V to 15V 75@50Hz Vcc=10V to 15V DC Bias Input/Output Port Specifications

7. ParametersUnitsMinimumTypicalMaximum GaindB242527 RippledB±1 NFdB8< 910 IIP3dBm-1@550MHz 0@850MHz 3@1450MHz Output 1 dB Compression Point dBm16@550MHz 17@850MHz 17.5@1450MHz Image RejectiondB>80dB Central Frequency Bandwidth@3dBRejectionDigital controlNotes RF1c=1000MHzRF1BW=1200MHzRF1c±750MHz=20dB(min)00Full Band RF2c=1300MHzRF2BW=600MHzRF2c±400MHz=20dB(min)01High Band RF3c=700MHzRF3BW=600MHzRF3c±400MHz=20dB(min)10Low Band RF4c=1000MHzRF4BW=600MHzRF4c±400MHz=20dB(min)11Mid Band Final Receiver General performances are: Characteristics of the Filter Bank

8. Noise Figure vs selected filter

9. Gain Vs. selected filter

10. Comparision Gain Vs. selected filter (4 prototypes)

11. Gain Vs. frequency (Fixed LO1, Swept RF)

12. RF, IF, LO1 and LO2 Return Loss

13. Layout

14. Shielded Box Outline

15. Dwingeloo April 2007 Test for connecting the Receiver to ADC

16. adc. sync 200MHz*3 Rx tuned at 600MHz No Spurs with shielding …tests shown that the GSM signals (1830MHz) can be received although out of band. In order to reject them an high selectivity filter after the tile combiner is suggested.

20. Conclusion