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