Product Info

The bandwidth of LTE-TDD B41 for SC600Y-EM/SC600T-EM, SC600Y-JP/SC600T-JP,

SC600Y-NA/SC600T-NA is 200MHz (2496MHz~2690MHz), and the corresponding channel ranges from

39650 to 41589.

Main and Rx-diversity Antenna Interfaces Reference Design

A reference circuit design for main and Rx-diversity antenna interfaces is shown as below. A π-type

matching circuit should be reserved for better RF performance, and the π-type matching components

(R1/C1/C2, R2/C3/C4) should be placed as close to the antennas as possible. The capacitors are not

mounted by default and resistors are 0Ω.

Figure 33: Reference Circuit Design for Main and Rx-diversity Antenna Interfaces

Reference Design of RF Layout

For user’s PCB, the characteristic impedance of all RF traces should be controlled to 50Ω. The

impedance of the RF traces is usually determined by the trace width (W), the materials’ dielectric constant,

the height from the reference ground to the signal layer (H), and the space between RF traces and

grounds (S). Microstrip or coplanar waveguide is typically used in RF layout to control characteristic

NOTE