Company and Range

COM-TECH is an Italian leading company designing and developing high-end RF passive components.
COM-TECH has become a reference worldwide, having supplied products and services to Customers in more than 50 Countries.
COM-TECH key distinctive factors are: Innovation, Reliability, Performance, Flexibility.

The Broadcast business area covers the UHF, VHF B.III, VHF B.I, FM frequency ranges for the following applications:

  • Digital (DVB-T, ATSC, ISDB-T) and Analog Broadcast TV
  • Digital (DAB, T-DMB) and Analog (FM) Broadcast Radio

The Industrial, Scientific and Medical business area covers the 50 – 2.500 MHz frequency range for the following applications:

  • Particle Accelerators (Sychrotrones, LINACs…)
  • IoT (Internet of Things)
  • Microwave Communications (Wireless camera links, microwave distribution…)
  • Transport Networks (Service communications, tunnel signal distribution…)
  • ATC (Radio communication for Air Traffic Control)
  • PMR (Professional Mobile Radio)
  • Weather and Hydrological Monitoring

COM-TECH production range comprehends four main product families:

  • FILTERS: Output Bandpass Filters for Broadcast TV and Radio Transmitters
  • COMBINERS: Channel Combiners for Broadcast TV and Radio Stations
  • COMPONENTS: RF Components for Broadcast TV and Radio Transmitters and Stations. (Hybrid Couplers, Multicouplers, Patch Panels, Directional Couplers, Loads…)
  • ISM: RF Passive components for the Industrial, Scientific and Medical business areas (Hybrid Couplers, Multicouplers, High Power Couplers, Directional Couplers…)

Service and Quality

Service & Warranty
COM-TECH grants the fastest delivery terms in the market, thanks to a stock-oriented production process.
COM-TECH offers a complete Service, including site survey, installation, commissioning, maintenance, on-site retuning, and tuning trainings.

COM-TECH passive components are guaranteed for 10 years.
Active components are guaranteed for 2 years.
See Warranty Conditions on COM-TECH website for details.

RoHS Compliancy, BeO Free
COM-TECH supports the European Union’s efforts to remove harmful chemicals from consumer electronics.
COM-TECH products are compliant with Directive 2011/65/EC and Directive 2015/863/EC of the European Parliament and the Council of the European Union regarding the restriction of the use of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB), and polybrominated biphenyl ether (PBD) flame retardants, bis(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP), and diisobutyl phthalate (DIBP).
COM-TECH is taking an extra effort by making all its products Beryllium Oxide free, in accordance with the directive 2003/36/EC, which has classified Beryllium Oxide as “Carcinogenic”, and has thereof restricted its use and imposed safety rules in processing it.

Quality, Environment, Health and Safety
COM-TECH has established and maintains the following certified and documented Systems:

  • UNI EN ISO 9001:2015 – Quality Management
  • UNI EN ISO 14001:2015 – Environmental Management
  • ISO 45001:2018 – Occupational Health and Safety

to ensure that:

  • Products and Services offered comply with the requirements specified and defined in the contract with the customer, and maintain expectations
  • Production processes are defined and managed in order to prevent pollution as far as possible
  • Production processes are defined and managed in order to guarantee a safe workplace for the employees, customers, suppliers, and visitors.

History and Innovations

COM-TECH products have set new benchmarks in the broadcast industry, introducing brand new techniques and world first innovations:

Microteco Snc founded
by ing. Daniele Valenti
1990 TV Manifold Combiner
World first Broadcast TV Combiner with Manifold technique (MPX3L)
Microteco changes name and company type into COM-TECH Srl (Private Limited Company) 1992
1998 DAB Filter
First company in Italy to purchase
CST Microwave Studio

ISO 9001 Certification

First exhibition at IBC
2001 Elliptical-Response
World first Broadcast TV Bandpass Filter with Elliptical-Response technique (TC4E120L)

Interdigital Hairpin Design
COM-TECH ultra-compact Interdigital Hairpin Design VHF B.I Bandpass Filter

New Premises
(Via Industria 7, Morbegno)
2003 DualCross
World first Broadcast TV Bandpass Filter with Double Cross-Coupling technique (TC6E120C)
2004 XLine
World first Broadcast TV Bandpass Filter with Extracted-Pole technique (CL6X30C)
2005 MultiStep
International patent application for world first Ultra-Flat response UHF TV Hybrid Coupler (TH100C)

200mm Cavity Filter
World first TV Bandpass Filter with 200 mm cavity size (TC4E200C)

2006 BeO-Free Dry Load
World first Broadcast TV BeO-Free Dry Load (DL3000C)

COM-TECH first introduction of Multicouplers and Splitters

DF Series
World first Balanced Combiner with Multistep Hybrid Couplers

2007 Liquid Cooling
COM-TECH first introduction of Liquid Cooling on Bandpass Filters
2009 Accuprobe
World first Directional Coupler with fully Equalized Probes (DC4A23)
COM-TECH do Brasil
COM-TECH Srl changes name and
company type into COM-TECH Italia
(Public Limited Company)

ISO 14001 Certification

2012 Forced Air Cooling
World first integrated Air Cooling System on a Broadcast TV Filter
2013 TF Series
COM-TECH novel and unique ultra-compact UHF Bandpass Filters

NH Series
COM-TECH innovative and proprietary UHF MultiStep Hybrid Couplers

New Premises
(Via Artigianato, 9, Morbegno)
2014 FM Manifold Combiner
World first FM Combiner with Manifold technique (ME3P120F)
2015 TS-Series
COM-TECH innovative and ultra-compact VHF B.III Filter
BS OHSAS 18001 Certification 2016 MH-Series
COM-TECH innovative Progressive Multicoupler
2018 Accuprobe III
COM-TECH New Generation Directional Coupler with Equalized Single and Dual Probes
2020 High power Lowpass Filters

New high power Lowpass Filters for UHF, VHF B.III and FM (LH Series)

High Power FM Filters and Combiners

Innovative High Power FM Filters (TC Series, 280 mm cavity size)

2021 High Power FM Filters and Combiners

Innovative High Power FM Filters (TC Series, 400 mm cavity size)

2022 New 30mm UHF Manifold Combiner

The versatility, compactness and cost-effectiveness, of the Manifold Combiner with a bigger Cavity Size (MX Series)

New Low Power DAB Filters and Combiners

Innovative and ultra-compact DAB Filters (CL Series)

Design and Workflow

COM-TECH products are designed with state-of-the-art techniques, engineered with the most innovative development tools, and realized with cutting-edge manufacturing technology, in order to deliver the most advanced performances with the highest level of reliability:

  • Highest voltage safety margins for maximum reliability
  • Lowest insertion loss for optimum efficiency
  • Highest power handling over the physical dimension, for maximum compactness
  • Rugged construction for maximum mechanical stability, durability, and immunity to transportation shocks

Since the beginning COM-TECH has made extensive use of Computer Aided Engineering (CAE), and has been amongst the first to adopt 3D EM and Fluid Dynamic simulation, coupled with the most advanced Optimization tools.
COM-TECH’s development workflow:

1. Exact Circuit Synthesis, Analysis and Optimization

2. Distributed Synthesis, 3D EM Modeling and Analysis, and Multi-Objective Optimization

3. 3D Fluid Dynamic Modelling

5. 3D CAD

6. CAD-CAM Machining