As an example, consider the duplexers
used for connecting a single antenna to transmitter (TX) and receiver (RX) units.
All of the PAD (PA + Duplexer
) family will have integrated continuous bias, integrated power detection and integrated isolator functionality, and will be fully optimized over all temperature, bias and power levels.
Since the typical noise power of a CDMA transmitter in the Bx band is -135 dBm/Hz, (1) if the duplexer
's Tx-Rx isolation is larger than about 50 dB, then [n.sup.i.sub.Tx] [approximately equal to] 1 and [F.sub.max] [approximately equal to] 9 or [NF.sub.max] [approximately equal to] 9.5 dB.
Baltus, "A millimeter-wave tunable hybrid-transformer-based circular polarization duplexer
with sequentially-rotated antennas," IEEE Transactions on Microwave Theory and Techniques, vol.
With the release of the UMD family of duplexers
, CTS offers best in class performance for metro cell base stations in a fraction of the space demanded by alternative duplexing technologies.
The UAE 700MHz will bring important benefit for the country of utilising the lower duplexer
of the APT700 as a base line with the possibility for additional 2 x 10 MHz for more spectral efficiency and for Public Protection and Disaster Relief applications.
Chaloupka, "A high-temperature superconducting duplexer
for cellular base-station applications," IEEE Trans.
These technologies were integrated into a single prototype chip that combines a duplexer
, a transmitting amplifier, and a receiving amplifier.
Other features of the Epson K300 include a built-in duplexer
, smudge-free/fade and water resistant Epson DURABrite Ultra pigment ink, built-in Ethernet, and the highly reliable Micro Piezo print head that lasts the life of the printer and uses up to 70% less power than conventional laser printers at a similar price point.
Other devices using the CSRR particle have been proposed recently [10,11], even a duplexer
based on a LHM has been presented .
The AM 1880-1960D268 surface-mounted, monoblock ceramic duplexer
. Transmit-to-receive response includes insertion loss from 1850 MHz to 1960 MHz of 3.4 dB or less.
An optional automatic duplexer
clicks on the rear of the main unit and provides double-sided printing, including booklet printing.