Frequency Diversity TRIZ Cases
- Portable Troposcatter Terminal With Close-Coupled Radio Layout
Direct antenna-to-radio coupling cuts RF cable loss and amplifier burden, enabling a lighter portable troposcatter terminal.
- Dual-Polarized Antenna Assembly for Reflective Wireless Coverage
Dual-polarized antennas and phase shifting capture reflected wireless signals through ducts and other reflective paths without extra base stations.
- RF Receiver Signal Placement for Lower-Q Filter Integration
Placing two signals at controlled frequency offsets lets RF receivers use lower-Q filters and IF filtering to suppress interference with less power.
- Interleaved Multi-Satellite Beams for Higher Frequency Reuse Capacity
Interleaving spot beams from multiple satellites boosts frequency reuse capacity while limiting adjacent-beam interference and satellite size.
- Interleaved Satellite Spot Beams for Higher Capacity Density
Interleaving spot-beam frequency reuse across multiple satellites raises capacity density while limiting antenna count, weight, and interference.
- Interleaved Multi-Satellite Spot Beams for Dense Frequency Reuse
Interleaving frequency reuse plans across multiple satellites boosts spot-beam capacity density without adding antenna count, mass, or complexity.
- Multi-Phase Local Oscillator Switching to Suppress Frequency Pulling
A multi-phase oscillator and time-slot multiplexer create a non-integral LO frequency to block harmonic pulling and improve signal quality.
- Antenna Tuning Switching for Multi-Band Linearity Control
Dynamic switching between passive and active antenna tuning extends band coverage while limiting RF mixing and intermodulation.