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Advantages of Cascading Reflectionless Filters
Cascading filters in series is commonly used to enhance stop-band rejection and steepness in the transition band. This can introduce problems in the pass-band such as ripple and phase instability, which distort the desired signal and degrade system performance.
The treatment given here is introductory, and will assist the reader who wishes to consult the standard texts for further detail on measurement techniques. For measurements on mixers and frequency doublers, please refer to the application notes on these subjects.
Coupler Theoretical Main-Line Loss Calculation (AN-30-004)
The main-line loss of a coupler is defined as the loss between the input and output ports. This articles derives the formula for conversion between the fraction of the input power that is outputted at the coupled port.
Pairing Mixers with Reflectionless Filters to Improve System Performance
Traditional filter designs employ circuits which reject undesired signals by reflecting them back to the source. There are many applications in which these reflections produce intermodulation products, gain ripples and other problems in system performance.
Handling of Mini-Circuits Open Case Models
Open case models require certain additional handling precautions. Following these precautions will ensure handling does not have a negative impact on the performance of the devices.
A useful feature of Mini-Circuits' electronic attenuators is the ability for either a positive or negative control current to provide the same amount of attenuation between input and output; this makes it useful for biphase modulation applications.
The directional couplers offered by Mini-Circuits are designed for both commercial and military applications. All models are available in plug-in, flat-pack, surface mount, and connectorized SMA, BNC, Type N, TNC (option) packages.
Phase Locked Loop Fundamentals
The basic form of a phase locked loop (PLL) consists of a voltage controlled oscillator (VCO), a phase detector (PD), and a filter. In its more general form, the PLL may also contain a mixer and a digital divider.
High Performance, Low Cost, Surface-Mount Quadrature Couplers
Mini-Circuits has developed series of high performance 3 dB quadrature couplers. These products exhibit low insertion loss, amplitude unbalance and phase unbalance with good isolation covering the 800 to 2400 MHz frequency range.
Do It Yourself Low-Cost Directional Couplers
There is a continuing demand to reduce the cost and increase the performance and quality at the same time. Mini-Circuits is working to satisfy these goals and has introduced a new directional couplers series to satisfy the demands of the market.
Statistical Process Control
How does one get more competitive? The answer is simple. Exceed your customers’ needs and expectations. Provide, in the manner required by the customer, a quality product at low cost, on time, every time.
PGA-102+: LTE Performance vs Output Power
Mini-Circuits PGA-102+ High Dynamic Range MMIC Amplifier is designed specifically for applications which require high linear performance, particularly wideband, advanced digital communications systems such as LTE which require excellent ACLR suppression and low EVM.