ETRI-Knowledge Sharing Plaform

Phase Shifter K-Band Leo Satellite Return Loss(RL) Front-End Power Amplifiers(PAs) Active Components Circular Polarizers Weather Conditions Antenna Array Feed Network Amplitude Variation Phase Tracking Phased Array Technique Power Signal Waveguide Feed Temperature Variations Relative Phase Shift Receive Beamforming High Power Flat Panel Effective Isotropic Radiated Power Band Pass Filter(BPF) Radiation Element Beam Control Satellite Communication System Cp Antenna Direct Conversion Receiver Channel Power Control Unit Dual-Core Tracking Method Standing Wave Radiation Hardened Hybrid Couplers High Gain Low-Power Multi-Input Type-I Broadband Power Amplifier Two-Stage Multi-Mode Mixing Method Multi-Channel Polyphase Filter(PPF) Phase Array Antenna Passive Microwave Path Control Circularly Polarized Antenna Gain Enhancement Ka-Band Satellite Communication Multiple Input Multiple Output(MIMO) Active Balun Cmos Technology Cmos Power Amplifier Control Module Two-Way Shaped-Beam Signal Generation Vector Calibration Variable Gain Amplifier(VGA) Frequency Synthesizer Ku-Band Load Variation One-Stage Qam Signals Predistortion Linearizer Adaptive Phase Analog Predistortion Built-In Beam Pattern Dual-Band Operation Digital-To-Analog Converters Transmission Path Satellite Antenna Satellite Systems Recursive Architecture Mimo Transmission Multi-Output Over-The-Air(OTA) Port-To-Port Isolation Array Calibration Four-Port Iq Mismatch Inter-Stage Improved Roll-Off Microwave Integrated Circuit Microwave Monolithic Integrated Circuits(MMIC) Power Assignment Power Combining Array Feeder AM-PM Control Voltage Digital Signal Processing 65nm Cmos Roll-Off Characteristics Relay Satellite System High Reliability High Isolation Inter-Satellite Link Lc Resonance On-Board Phase Inverter Center Frequency Data Relay Satellite Three-Winding Transformer 3 V Recursive Structure 5 Ghz Wireless Communication System Low-Cost Multi-Beam Satellite Output Amplifier Output Load 16 Quadrature Amplitude Modulation(16QAM) 2.4 Ghz