CEL Unveils New High Power RF Switch Family for Wireless Applications

CEL has announced the availability of the CG2409 family of high power RF switches. The switches are manufactured using state of the art pHEMT technology and are packaged and tested in Japan to guarantee high quality and reliability. They are available in two frequency configurations, the CG2409X3 operates from 0.05 to 6 GHz and the CG2409M2 operates from 0.05 to 3.8 GHz.

These RF switches can be used in a wide array of applications to switch between Transmit / Receive modes, as Diversity Switches, switching between two different antennas, and also switching between RF Frequency Bands.

There are two trends that dominate recent Wi-Fi systems development. One is the increase of RF transmission power for improved coverage range and better signal quality, and the other is the increasing use complex modulation schemes to boost the data throughput. Both trends put more stringent requirements on power handling capability as well as linearity of the RF components used in the transmission path in order to meet regulatory and signal integrity specifications. As a result, RF switches at the antenna ports are now one of the most critical components. While more integrated front-end-modules (FEM) are finding increasing usage, particularly for space constrained applications, discrete MMIC switches still offer the most flexibility in terms of system configuration and performance selection.

The CG2409X3 is a wideband, high-power single-pole, double-throw (SPDT) GaAs MMIC RF switch, specified for the frequency range of 0.05 to 6 GHz, and can operate at a control voltage from 1.8 V to 5 V. The P1dB compression point of the switch is 37.5 dBm at 3 V.  The second and third harmonic specs are -80 dBc and -85 dBc respectively at input power of 26 dBm. The insertion loss ranges from 0.3 dB to 0.6 dB while the isolation ranges from 32 dB to 28 dB over the frequency range. The device is in a compact 6-pin XSON package (1.5 mm x 1.5 mm x 0.37 mm).

The CG2409M2 is also a high-power single-pole, double-throw (SPDT) GaAs MMIC RF switch but is specified for the frequency range of 0.05 to 3.8 GHz and operates at a control voltage from 1.8 V to 5 V. The P1dB compression point of the switch is 36.5 dBm. The second and third harmonic specs are -80 dBc and -85 dBc respectively at input power of 26 dBm. The insertion loss ranges from 0.35 dB to 0.6 dB while the isolation ranges from 35 dB to 21 dB over the frequency range. This device is in a small 6-pin surface mount package (2.0 mm x 1.25 mm x 0.9 mm).