What Phase 2 Microwave does

Phase 2 Microwave (legal entity Phase2 Microwave Ltd.) is a privately held UK specialist engineering company headquartered in Stevenage, founded in 2004, that designs, manufactures, and supplies RF and microwave components and subsystems. Its product portfolio spans two technology platforms: waveguide components (filters, diplexers, multiplexers, couplers, transitions, bends, loads, polarisers, OMTs, mode converters) and coaxial components (cavity and combline filters, diplexers, directional couplers, 3dB hybrids, circulators, isolators, GPS notch filters). The firm serves defence, aerospace, space, satellite communications, radar, railway, broadcasting, and homeland security customers, with named relationships across European defence primes (Airbus, BAE Systems, Thales, Selex) and US end-users (Honeywell for space, US Homeland Security for a 700/800MHz triplexer, Network Rail for GSM-R).

The company's economic model is built on bespoke and small-batch engineering: an in-house UK design team produces exact designs using proprietary mode-matching software, prototypes quickly, and either manufactures in-house or transfers to offshore manufacturing partners for medium-to-high volume runs. Additional revenue comes from standard catalogue RF components and from design consultancy services, which have recently been extended to include LNA design and multilayer high-frequency PCB design. Pricing is not publicly disclosed; all quotes are negotiated direct via phone/email, consistent with project-based defence and aerospace procurement. The firm is ISO 9001-2015 certified and serves five primary verticals: Space, Radar, Sat-Comms, Defence & Security, and Commercial & PIM Test Systems.

Operationally, Phase 2 Microwave is a small firm (11-50 employees) operating from a single Stevenage facility, with no disclosed funding rounds, no M&A activity, no parent or subsidiary structure, and no publicly disclosed revenue or ownership detail. Distribution is direct to enterprise and government customers across the UK, Europe, and the US, with marketing conducted primarily through the company website and LinkedIn. Its competitive position rests on 20+ years of accumulated microwave design know-how, in-house EM modelling tools, ISO-certified quality systems, and approved-supplier status with major primes rather than on scale or AI-driven design.

Name

Phase 2 Microwave

Legal name

Phase2 Microwave Ltd.

Website

https://phase2mw.co.uk

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Phase2 Microwave Ltd. is a UK-based specialist engineering firm that designs, manufactures, and supplies bespoke and standard RF and microwave components, including filters, diplexers, couplers, and waveguide subsystems, serving defence primes, space agencies, and government clients across the UK, Europe, and the US.

Ownership category

akta.pro rank

Product category

RF and Microwave Components

NAICS

Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Communications Equipment Manufacturing (3342), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Electronic Coils, Transformers & Other Inductors (3677)

akta.pro primary industry

Passive Filters & RF Passives (LC Filters/Diplexers/Baluns/Attenuators) (HDAHANAG)

Keywords

• RF microwave components
• Waveguide filters
• Coaxial filters
• Microwave diplexers
• RF subsystems

Headquarters

HQ city

Stevenage

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Custom/Bespoke Product Manufacturing: Design, manufacture, and supply of bespoke microwave components and subsystems tailored to customer specifications, including project management services
2. Standard Product Sales: Sale of standard RF and Microwave components including filters, diplexers, couplers, circulators, isolators, waveguide components
3. Design Consultancy Services: Flexible electrical and mechanical design and consultancy services, including project management, to produce high quality designs and prototypes in short time-scales

Go-to-market motion2 records

Distribution channels2 records

Marketing channels2 records

Core offering

Phase 2 Microwave designs, manufactures, and supplies RF and microwave components and subsystems including filters, diplexers, directional couplers, circulators, isolators, and waveguide components using both coaxial and waveguide technologies. The company serves space, radar, satellite communications, defence and security, and commercial markets with standard catalog products as well as custom bespoke designs, supported by in-house electrical and mechanical design and consultancy services.

Product overview

Phase 2 Microwave is a UK-based technology company specializing in the design, manufacture, and supply of RF and microwave components and subsystems. The product portfolio centers on two main technology platforms: waveguide and coaxial products. The core product lines include Filters (waveguide and coaxial), Diplexers, Directional Couplers (including loop couplers and 3dB hybrids), Waveguide Transitions, Waveguide Straights/Twists/Tapers, Waveguide Bend Assemblies, RF Loads (both high precision and high power), Machined Bends, Circulators and Isolators, GPS Notch Filters, Polarisers, OMTs, and Mode Converters. Additional offerings include integrated components and sub-systems. The company also provides design consultancy services encompassing electrical/mechanical design, LNA design, and multilayer high frequency PCB design. Products are offered in both standard ranges and bespoke/custom configurations across multiple market sectors including Space, Radar, Sat-Comms, Defence & Security, and Commercial & PIM Test Systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Waveguide Filters Low-loss complex filters and multiplexers designed using waveguide technology, capable of handling very high power. Includes highpass, lowpass harmonic, and absorptive filter types.
• Coaxial Filters High quality cavity filters and diplexers designed using combline structures for bandpass applications, plus lumped element, helical, and combline technologies for VHF and UHF bands.
• Diplexers RF diplexers combining multiple frequency bands into a single transmission path, available in both waveguide and coaxial configurations for space, radar, and cellular applications.
• Multiplexers Multi-channel filter combiners using waveguide procedures and cable-connected manifold design, capable of combining up to 5 channels including adjacent channels.
• Coaxial Directional Couplers Standard coaxial directional couplers with N Type, SMA, and 2.92mm connectors covering bands from 0.4 to 40GHz, available in 3dB, 6dB, 10dB, 20dB, 30dB, and 40dB coupling values.
• 3dB 90 Degree Hybrid Couplers Coaxial 3dB 90 degree hybrid couplers with SMA and 2.92mm connectors offering cost-effective solutions for industry requirements.
• Waveguide Transitions Standard and non-standard waveguide to coaxial transitions for connecting different waveguide sizes and connector types.
• Waveguide Couplers and Hybrids Loop couplers and crossguide couplers for directional coupling applications in waveguide systems.
• Waveguide Straights, Twists and Tapers Waveguide components for maintaining signal propagation while changing direction or waveguide size.
• Waveguide Bend Assemblies Assemblies with proprietary machined-from-solid waveguide design achieving better than 1.05 VSWR with zero internal radius, available in swept and machined varieties.
• RF High Precision Loads Low power, high precision loads/terminations with VSWR of 1.02 fullband, available across WG10 to WG22 waveguide sizes.
• RF High Power Loads High power waveguide loads/terminations with power handling from 0.03kW to 2.5kW depending on model and waveguide size.
• Machined Bends Machined from solid waveguide E and H plane bends which are non-porous and suited to pressurized systems, available in 45 and 90 degree standard configurations.
• Circulators and Isolators Single junction coaxial circulators and isolators with SMA Female connectors covering bands from 700MHz to 6GHz, standard power handling of 100W.
• GPS Notch Filters Low loss coaxial GPS notch filters with notch rejection up to 80dB, essential components of high power anti-IED jamming systems.
• Polarisers RF components for polarisation control in microwave systems.
• OMTs (Ortho-Mode Transducers) Components for separating or combining two orthogonal polarisation signals in microwave systems.
• Mode Converters Components for converting between different waveguide propagation modes.
• Integrated Components and Sub-systems Custom integrated microwave subsystems combining multiple components for specific application requirements.
• Design Consultancy Service UK-based flexible electrical and mechanical design and consultancy service including project management, covering complete mechanical design, passive electrical design, and collaboration with active PCB and digital teams.

Quantifiable outcome

• GPS notch filters with notch rejection up to 80dB
• +1 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Four partnerships are on record, tiered core.

• AirbuscoreStrategic or Co-development PartnerPhase 2 Microwave works with Airbus providing a wide range of microwave components and subsystems for European military applications, including Naval Satcoms systems.
• SelexcoreStrategic or Co-development PartnerPhase 2 Microwave collaborates with Selex (now part of Leonardo) to provide microwave components and subsystems for European military programmes.
• BAE SystemscoreStrategic or Co-development PartnerPhase 2 Microwave partners with BAE Systems to supply microwave components for UK and European defence programmes.
• ThalescoreStrategic or Co-development PartnerPhase 2 Microwave works with Thales Group to provide microwave components and subsystems for European military applications.

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Mini-Circuits: Large-scale manufacturer of RF, microwave, and millimetre-wave components including filters, couplers, and dividers. A broad incumbent in overlapping product categories with global reach.
• Pasternack (Infinite Electronics): Broad-line RF, microwave, and millimetre-wave component supplier and distributor. Not a custom-only peer but addresses many of the same filter and component needs for defence and satcom customers.
• Cobham Advanced Electronic Solutions: Defence and aerospace prime supplier of RF and microwave components and subsystems. Overlaps with Phase 2 Microwave in space, radar, and EW filter/diplexer content on major platforms.

Direct peers

• MtronPTI: US designer of precision frequency control and RF filter products for defence, space, and communications. Comparable in serving space and defence primes with custom RF components.
• Lorch Microwave: Designer and manufacturer of RF and microwave filters, diplexers, and integrated assemblies for defence and commercial wireless. Direct peer in filter and multiplexer offerings.
• RLC Electronics: Manufacturer of RF and microwave components including filters, multiplexers, switches, and couplers. Comparable niche component supplier serving defence and aerospace customers.
• Wainwright Instruments: German specialist in custom RF and microwave filters and multiplexers for wireless infrastructure, defence, and test. A European direct peer with overlapping customer profile.
• K&L Microwave: US-based manufacturer of RF and microwave filters, diplexers, multiplexers, and integrated assemblies for defence, aerospace, and commercial wireless. Closely comparable in product range and customer base to Phase 2 Microwave.
• Reactel: Specialist in custom RF and microwave filters, multiplexers, and integrated subassemblies serving defence, space, and telecom primes. A direct bespoke-filter peer to Phase 2 Microwave.
• Anatech Electronics: US manufacturer of RF and microwave filters, diplexers, and multiplexers for military, aerospace, and commercial communications. Comparable in focus on custom passive RF components.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/phase-2-microwave
• Facebookfacebook.com/profile.php

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Phase 2 Microwave