Andrew Faulkner1 DS4 Deliverables 4 th SKADS Workshop, Lisbon DS4 Deliverables Andrew Faulkner

Andrew Faulkner2 DS4 Deliverables 4 th SKADS Workshop, Lisbon 1. Establish benchmark LNA simulations to provide performance feedback for device process development for various semiconductor technologies. 2. RF on wafer (RFOW) measurements on device wafers fabricated (Maximum of 6 iterations), extract scaleable equivalent circuit model. 3. Design, fabrication and testing of SiGe band pass filter using PIC Technology 4. LNA design techniques simulation study – determine optimum design approach, including consideration of circuit topologies best suited for achieving wide operating bandwidth, linearity, low noise temperature, high yield and low cost 5. ADC Design rule established and recommended ADC architectures selected. 6. ADC building blocks design, fabrication and performance T1: Front End technologies - 1 Due: T Act: T &18 OK

Andrew Faulkner3 DS4 Deliverables 4 th SKADS Workshop, Lisbon 7. Design, manufacture and test of hybrid LNA using novel discrete devices developed in programme (two iterations) 8. Fabricate and test Integrated ADC circuits 9. Fabricate and test of advanced integrated interconnect technologies with Si and GaAs technologies. 10. Fabricate and test further LNA technologies – iterations 2 and Fabricate and test further ADC technologies - iterations 2 and Final report on different semiconductor technologies Due: T Act: T0+ 1 st done In prog. 6 mth delay OK TBD T1: Front End technologies - 2

Andrew Faulkner4 DS4 Deliverables 4 th SKADS Workshop, Lisbon T2: Signal Control & Digitisation 1. Wide band, high dynamic range A/D blocks (task linked with DS4-T1 and DS4-T3) 2. Digital Down Converters 3. Sizing of the digital word at the different levels of the system chain 4. Low cost Poly-Phase filter banks 5. Data distribution and synchronization 6. A quasi-perfect reconstruction equi-spaced filter bank channelizer Due: T Act: T0+ Done OK

Andrew Faulkner5 DS4 Deliverables 4 th SKADS Workshop, Lisbon T3: RFI mitigation techniques 1. Develop RFI mitigation strategies for the phased-array concept of SKA, at a station level and for the instrument as a whole; 2. Assess the influence of these methods on data quality; 3. Assess the cost effectiveness of these methods for the RFI environment of the selected SKA site; 4. Demonstrate practical RFI mitigation techniques for the EMBRACE and BEST SKADS demonstrators in particular, and in more general terms for focal plane arrays. Due: T Act: T Much of this work has been late starting and limited on resource Also, cyclostationary interference studies have been added There is little impact on other tasks The work will be completed by the end of SKADS Pretty much done

Andrew Faulkner6 DS4 Deliverables 4 th SKADS Workshop, Lisbon T4: Wideband integrated antennas Due: T0+ 48 Act: T0+ OK ?? OK 1. Wide band integrated antenna, dual polarization 2. Low cost antenna technology 3. Low cost packaging solutions 4. Low cost analogue photonic link 5. Reports on all of the above deliverables 6. Publications and PhD thesis

Andrew Faulkner7 DS4 Deliverables 4 th SKADS Workshop, Lisbon T5: Beam forming at patch level Due: T Act: T OK 25 OK 1. Prototype analogue beamformer in GaAs for EMBRACE. Superceded by Deliverable 2 – Si. 2. Prototype of a lower cost analogue beam-former in Silicon (not in time for EMBRACE.) 3. Prototype digital beamformer for 2-PAD. 4. Architecture design for the whole digital beam-forming system for 2-PAD. 5. A final report on the trade-offs and cost-effectiveness of analogue and digital beam-forming systems.

Andrew Faulkner8 DS4 Deliverables 4 th SKADS Workshop, Lisbon T6: The 2-PAD demonstrator Due: T Act: T0+ 42 OK 48 OK 1. Dual polarization all-digital tile 2. Design documentation package for all-digital tile 3. Test environment for prototype all-digital tile. 4. Evaluation report of tile performance. 5. Tile cost estimates projected for SKA volumes and timescales. 6. Reliability analysis report. 2-PAD is entering a critical phase. It appears to be tight but on time Cost estimates will be part of DS3-T3 Cost modelling

Andrew Faulkner9 DS4 Deliverables 4 th SKADS Workshop, Lisbon Summary We anticipate meeting all deliverables by end SKADS DS4-T2 is in the process of catching up 2-PAD is entering a critical phase It is essential that the quality of the deliverables meets SKA requirements The results of this development work are vital to ongoing work in PrepSKA era.