Ted Rappaport, founding director of NYU WIRELESS and a leading proponent of using the millimeter wave spectrum for wireless communications, discusses the FCC's recent rulemaking actions and technology developments that are paving the way to 5G.
To protect wide band X and Ku band amplifiers, Renaissance has designed a drop-in isolator covering two widely used communication bands in a .25” x .25” x .125” sub-compact package. Product features include an extremely broad bandwidth, a sub-compact size and wide temperature range. Insertion loss, 1.0 dB (max), Isolation 11 dB (min) and VSWR 2.0:1 (min.)
For SATCOM on-the-move (SOTM) terminals, Renaissance has designed a compact low loss isolator with K-connectors to support the bandwidth requirement of 27.35 to 31.7 GHz. The power handling on this model is 10 W forward and 1 W reverse, but this package can be customized for up to 50 W forward and 10 W reverse.
For SATCOM on-the-move (SOTM) terminals, Renaissance has designed a compact low loss isolator with K-connectors to support the bandwidth requirement of 27.5 to 30.5 GHz. The power handling on this model is 10 W forward and 1 W reverse but this package can be customized for up to 50 W forward and 10 W reverse.
To protect space communication payload electronics, Renaissance has designed a 26.5 GHz microstrip isolator. The main features include compact size, low loss and high isolation. This device meets all of NASA's outgassing requirements. Some of the benefits include the capability of being used for space or harsh environments, protection of expensive amplifier circuits and optimization for space constrained applications.
The HAFM Series of active multipliers is available in models ranging from 30 to 100 GHz. A wide variety of multiplication factors from X2 up to X6 provide the customer with design flexibility for many applications. Basic multiplier circuits can be cascaded to achieve higher order multiplication factors.
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.
Renaissance Electronics has designed a high power divider that divides power from 6 to 18 dB across the output ports. Operating between 1100 and 1500 MHz, this 8-way divider has a footprint of 8” x 5”. The divider can handle 350 W peak and 35 W CW.
Renaissance has designed a high power drop-in Circulator for EW Jammer application. Covering 2.5 to 6 GHz, this isolator can handle 100 W of CW Power over -40 to +95 C. The design is covered under a US Patent that provides a broadband match and power handling using a unique steel housing.
The HMI AND HMC series broadband ferrite junction isolators and circulators are available from 18 to 120 GHz. They utilize a low loss H-plane structure in a modified Y-junction format to provide minimum loss with maximum isolation and bandwidth. 2 GHz bandwidths with 20 dB of isolation are standard. Wider bandwidth, high power handling and magnetic shielding are available in select units.