---
title: "UK SBS SSAPS18140 CASTR System Validation Monopulse Detailed Design Study"
ocid: "ocds-b5fd17-3e4a6fbe-dac5-48b9-b890-10fb8f7f2c9f"
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markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-3e4a6fbe-dac5-48b9-b890-10fb8f7f2c9f.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-3e4a6fbe-dac5-48b9-b890-10fb8f7f2c9f.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "UK SHARED BUSINESS SERVICES LIMITED"
published: "2018-10-16"
---

# UK SBS SSAPS18140 CASTR System Validation Monopulse Detailed Design Study

Buyer: UK SHARED BUSINESS SERVICES LIMITED  
Current stage: Award  
OCID: ocds-b5fd17-3e4a6fbe-dac5-48b9-b890-10fb8f7f2c9f

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## Summary

The UK Shared Business Services Limited has awarded a contract titled "UK SBS SSAPS18140 CASTR System Validation Monopulse Detailed Design Study" in the radar and engineering design services industry. The contract was awarded on 28th September 2018, with a total value of £69,662. The contract period is set to run from 1st October 2018 to 28th February 2019. This procurement was executed through a direct method as a single tender action, following no suitable responses from an open or restricted procedure.

This tender presents a significant opportunity for businesses specialising in radar systems and engineering design services, particularly those with expertise in developing feed systems and simulations for high-frequency operations. Companies that can demonstrate capability in prototype fabrication and testing are well-suited to participate in similar tenders in the future. The focus on innovative solutions for meteorological radar upgrades provides a potential growth avenue for firms in these specialised sectors.

## Notice

***PLEASE NOTE THIS IS AN AWARD NOTICE, NOT A CALL FOR COMPETITION*** The STFC Chilbolton observatory operates a 25m prime focus reflector antenna in a meteorological radar system. There are increasing requirements to upgrade the radar to enable satellite tracking by implementing monopulse operation in addition to maintaining the weather radar functionality; this requires a new feed to be developed. The objective of this study is to devise a practical monopulse feed structure given a limited available space around the current feed. The available space may be approximately bounded by a cylinder of diameter 450 mm and depth approximately 1500 mm. The feed should feature dual orthogonal linear polarisations in the sum patterns and the difference patterns sets in azimuth and elevation. The reflector antenna is a non-offset prime focus antenna with dish diameter of 25m and f/D ratio of 0.36. The antenna, including feed structure, is intended for both transmit and receive, with a maximum transmit mean power (input to the structure) of 800 W and a maximum transmit peak power of 100 kW. Current frequency of operation is 3.0765 GHz, but there is a desire to operate between 2.7 GHz and 3.5 GHz. The contractor is required to: - Identify the optimal feed system to meet the above requirements and simulate the field patterns for the sum beam and error beams from the feed. - Simulate the feed with the 25m diameter reflector and show the resulting sum beam and error beam patterns and gains. This shall include calculations of the output signals from the receive ports for targets off boresight to at least +-0.1 degrees, ideally out to the point where the sum beam is 10dB down on the boresight gain. - Fabricate a prototype of the feed elements. - Test and the measure results compared with the simulations. Any differences shall be described and where the performance does not meet the requirements an approach to correct the design shall be suggested. This contract has been awarded in alignment with PCR 32 (2) (a)where no tenders, no suitable tenders, no requests to participate or no suitable requests to participate have been submitted in response to an open procedure or a restricted procedure, provided that the initial conditions of the contract are not substantially altered and that a report is sent to the Commission where it so requests;

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/ec214d2a-d38a-4951-8a73-21ddf5156f6b |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Single tender action (below threshold) |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 16 Oct 2018 |
| Submission deadline | 28 Sep 2018 |
| Future notice date | Not specified |
| Award date | 27 Sep 2018 |
| Contract period | 30 Sep 2018 - 28 Feb 2019 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £69,662 |
| Lots value | Not specified |
| Awards value | £69,662 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UK SHARED BUSINESS SERVICES LIMITED |
| Locality | SWINDON |
| Post town | Swindon |
| Postcode | SN2 1FF |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK7 Gloucestershire and Wiltshire |
| ITL 3 | TLK71 Swindon |
| Local authority | Swindon |
| Electoral ward | Rodbourne Cheney |
| Westminster constituency | Swindon North |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | STEATITE |

## CPV Codes

### Divisions

- 35 - Security, fire-fighting, police and defence equipment
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 35722000 - Radar
- 71320000 - Engineering design services

## Release History

- 16 Oct 2018 at 11:07 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/ec214d2a-d38a-4951-8a73-21ddf5156f6b

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/ec214d2a-d38a-4951-8a73-21ddf5156f6b
  16th October 2018 - Awarded contract notice on Contracts Finder

## Notice URLs

- http://www.uksbs.co.uk

## Provenance

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