Passive Components

RSS

The AM748B1188 ceramic bandpass filter has a center frequency of 748 MHz, passband of 740 to 756 MHz, ripple of less than 0.7 dB, insertion loss of 2 dB, return loss greater than 14 dB, and rejection of at least 40 dB. It handles 2 W, has an operating temperature range of -20^o to +70^o C and measures 17 x 13 x 5.5 mm.

The AB950B603 cavity bandpass filter has a center frequency of 950 MHz, passband of 940 to 960 MHz, insertion loss of 0.7 dB, return loss of 18 dB, and operating temperaturerange of -40^o to +85^o C. The filter will withstand shock of 20 G (11 ms) and vibration of 20 G, measures 6.6 x 3.5 x 1.5 in., and uses Type-N female connectors.

The AD830-875D207 cavity duplexer for GSM applications has a Band 1 passband of 825 to 835 MHz and Band 2 passband of 870 to 880 MHz. Insertion loss is less than 1.3 dB, ripple is less than 0.2 dB, isolation is 90 dB, rejection ranges from 25 to 90 dB, and return loss is greater than 20 dB.

Cernex's CBF series bandpass filter is primarily used for narrowband applications. Passbands are typically from 1 to 4%. The CBF series bandpass filter can be designed from 3 to 170 GHz up to 30% bandwidths in 16 waveguide bands. Insertion losses are typically 0.8 to 2.0 dB depending upon rejection levels.

RFMW Ltd. announces design and sales support for the PE4312, 6-bit digital step attenuator from Peregrine Semiconductor. The PE4312 is designed for use in wireless infrastructure, portable radios and broadband infrastructure applications from 1 MHz to 4 GHz. Key features include excellent attenuation accuracy +/- (0.15 + 2% of attn at 2.2 GHz) and low insertion loss.

This new PXI 10A power multiplexer (model 40-661) is available in a variety of configurations ranging from 8 off 4:1 multiplexers to 1 off 32:1 multiplexer. Each multiplexer is capable of hot switching up to 10 A at 30 VDC and has a maximum DC hot switch rating of 125 VDC. AC signals up to 250 VAC at 10 A can be switched. For cold switching applications the 40-661 is capable of withstanding 400 VDC.

AtlanTecRF has two models of Zero Bias Schottky Detectors with high sensitivity and a wide operating temperature range. The first two frequency ranges offered are 10 MHz to 18 GHz and 2.0 to 8.0 GHz, both with sensitivity of 500 mV/mW and TSS of -50 dBm. Flatness over the 10 MHz to 18 GHz frequency band is +/-1.25 dB max and VSWR for each unit is 2.0:1.

Renaissance has developed a new coaxial isolator that operates from 2 to 8 GHz in a single compact package size. Typical insertion loss is 0.5 dB and at band edges, the loss typically is 1.0 dB at room temperature. With return loss and isolation tuned to 14 dB at room temperature, this unit is ideal for EW Jammer type applications.

To protect expensive high power amplifiers operating at X-Band, Renaissance has developed a new broadband coaxial isolator that operates from 9 to 9.6 GHz and can handle 50 W reflected power. Insertion loss of 0.5 dB is maintained over -40 to +85 C.The reflected power is dissipated to the mounting surface with an extended heat sink that must be maintained below 50 C for CW operations.

Narda offers a wide range of PIN diode based limiters. The wideband limiters that are part of this line cover 1 to 18 GHz in one band. They support power handling up to 6000 W of pulsed power. The limiters were designed to meet severe environmental conditions for airborne and other applications.