Application Notes

Frequency Band Designation Typical Frequency Range VHF Band 100 to 300 MHz UHF Band 300 to 1000 MHz Terrestrial Trunked Radio (TETRA) 300 to 1000 MHz CDMA 450 420 to 495 MHz 700 MHz Public Safety Band 764 to 869...

Long Term Evolution (LTE) – A White Paper from the UMTS Forum What is LTE? Long Term Evolution (LTE) describes standardization work by the Third Generation Partnership Project (3GPP) to define a new high-speed radio access method for mobile communications...

RoHS (Restriction of Hazardous Substances) Declaration/R.E.A.C.H.

Reactive RF Splitter Introduction Reactive splitters have long been the prevailing signal distribution component for antenna arrays and radiating cable systems for in-building deployments because of their low loss and rugged nature. Unlike Wilkinson power dividers that use internal resistors...

An RF isolator is a two­port ferromagnetic pas­sive device which is used to protect other RF components from excessive signal reflection. Isolators are commonplace in laboratory applications to separate a device under test (DUT) from sensitive signal sources. An RF...

We can help you avoid costly mistakes! The limiting factor for most Wilkinson power dividers used as combiners is power dissipation. When input signals are out of phase, non-coherent or have amplitude unbalance this causes a cancellation across the isolation...

IP Dust and Water Protection Rating This section provides a short overview and essentials of the classification. For more details, please refer to the latest original publication IEC 60529 (direct ordering or list of local sources via Internet www.iec.ch). IP...

3dB, 90° Hybrid Couplers A 3 dB, 90° hybrid coupler is a four-port device that is used either to equally split an input signal with a resultant 90° phase shift between output ports or to combine two signals while maintaining...

How to Specify the Best Directional Coupler for Your Critical Application Introduction Over the years many different techniques have been utilized to bring about the physical realization of directional couplers. The scope of this article is limited to discussion of...