Micro Communications (MCi) coaxial power combiners are used to combine as many as six power amplifiers into a single output. MCi coaxial power combiners are available in a range of configurations and combine power at various different levels. Our specialty is working with high power levels and we welcome you to discuss your requirements.
High Power Coaxial Combiners
The combining action is accomplished by the use of precision transformer sections. The number of inputs dictates each transformer design. The use of single or multiple transformers is in direct relationship to the bandwidth. UHF power combiners are designed to cover the full UHF band. Two models cover the Hi-V band and the LoV is designed for each individual channel. These combiners are ideal when used to combine multiple amplifier modules into a single output as is the case in solid state transmitters.
Design Features & Specifications
- Installs Inside Cabinet
- Combines Solid State Power Amplifiers
- Broadband
- Low VSWR
| VSWR | Insertion Loss |
| 1.10 dB (over band) | 0.10 dB (over band) |
UHF Coaxial Switchless Combiner
MCI’s coaxial switchless combiner is designed to combine two similar transmitters into a single output. This proven design consists of quadrature hybrids and a single ended phase shifter. MCI’s switchless combiner allows the broadcaster to switch between either of two transmitter systems. All mode switching is done without shutting down the transmitters. Mode switching is controlled with MCI’s “Micro Switcher”. This controller eliminates complex relays found in many controllers. The compact, unitized design simplifies installation. Coax feeds between transmitter outputs and test load connections are all that is required for setup. The stand alone system can be positioned easily within the transmitter building.
Design Features & Specifications
- Ideal for Main / Standby
- Switches under Tx power
- No loss of on air signal
- Compact size
- Microprocessor control
- Quick installation
- Options available: wattmeter, couplers, test load
| VSWR: | 1.08 : 1 (over channel) |
| Frequency: | UHF band (specify channel) |
| Insertion Loss: | 0.20 dB max (0.10 dB typical) |
| Isolation: | -30 dB or more |
| Impedance: | 50 Ohms |
| Connections: | Standard EIA coax |
VHF High Power Coaxial Hot Switch & Switchless Combiner
The MCi High Power VHF Switchless Combiner is designed to combine and/or switch two transmitter inputs to one or both of the combiner outputs. The switching operation can be done under full power without interruption of programming. MCi now extends their line of high power switchless coaxial combiners to the VHF range.
The new VHF switchless combiner relies on the same dual section, non-contacting short, quadrature hybrid phaser technology as the UHF model, ensuring trouble-free high power performance. The mode charts below and within the data sheet show the changes in power to either output port as the phaser is moved through its positions.
The unit’s positions are factory pre-set. A microprocessor controller with momentary push-button user contacts and full status interlocks, controls the single motor drive and allows for remote switching.
Design Features & Specifications
- No Loss of Air Time
- Switches Under Power
- High Isolation
- VHF Applications to 100 kW
- Microprocessor Control
- Non-contacting Choke Phaser
| VSWR: | < 1.10 Over Pass Band |
| Insertion Loss: | < 0.1 dB |
| Isolation: | > 35 dB at Visual Carrier |
MCI: A Microwave Techniques Company
As a Microwave Techniques Company, MCi promotes the legacy product lines of our partners, Mega Industries and Ferrite Microwave Technologies. The Microwave Techniques group has one of the widest lines of power combining technology. We welcome you to explore the legacy product lines of Mega and Ferrite. As a group, we are certain we can find a power combining solution for your application.
Visit Ferrite Microwave Technologies Website
To learn more about our coaxial power combiners, please contact us at sales@microwavetechniques.com. We look forward to partnering with you on your next broadcast, RF or microwave project!
