ETRI-Knowledge Sharing Plaform

Front-End Feed Network Satellite Communication System Beam Control Return Loss(RL) 3 V Relative Phase Shift Waveguide Feed AM-PM Power Amplifiers(PAs) Power Signal Phased Array Technique Weather Conditions Circular Polarizers Leo Satellite K-Band High Power Effective Isotropic Radiated Power Control Voltage Band Pass Filter(BPF) Tracking Method Power Consumption Magnetic Field(MF) Adaptive Phase 28 Ghz Radiation Element Amplitude Error Active Components Receive Beamforming Phase Tracking Array Elements Temperature Variations Phase Array Antenna Polyphase Filter(PPF) Control Unit Inter-Satellite Link Gain Control Flat Panel Array Calibration Amplitude Variation Beam Pattern Control Functions Channel Power Dual-Core Direct Conversion Receiver Dc Power Gilbert-Cell Ground Planes(GP) Ghz Range High Gain Antenna(HGA) High Output Power Low-Power Low-Complexity Multi-Input Peak Gain Patch Structure Type-I Standing Wave Radiation Hardened Phase Error Broadband Power Amplifier Circularly Polarized (Cp) Antenna Communication Performance Cross-Shaped Calibration Method Error Vector Magnitude Gain Variation Multi-Channel Multi-Mode Mixing Method Noise Figure(NF) Ofdm Signal Phase Control Passive Microwave Path Control Two-Stage AM-AM Circularly Polarized Antenna Four-Layer Gain Enhancement Hybrid Coupler Insertion Loss Half Power Beamwidth Ka-Band Satellite Communication Large Array Antennas Mmwave Communication Multiple Input Multiple Output(MIMO) Power Combiner Patch-Based Precise Measurement QAM OFDM Synthesis Technique Active Phase Shifter Antenna Structure Average Efficiency Control Module Cmos Power Amplifier Frequency Synthesizer Higher Performance High Directivity Ku-Band Inter-Satellite Communication Load Variation One-Stage Predistortion Linearizer Qam Signals Vector Calibration Variable Gain Amplifier(VGA) Two-Way Shaped-Beam Signal Generation Single Antenna 64-QAM Analog Predistortion Built-In Dynamic Range Digital-To-Analog Converters Dual-Band Operation High Data Rate Lower Power Mimo Transmission Multi-Output Over-The-Air(OTA) Port-To-Port Isolation Reduce The Insertion Transmission Path Satellite Antenna Recursive Architecture Structure Improvement Four-Port Improved Roll-Off Iq Mismatch Inter-Stage Microwave Integrated Circuit Microwave Monolithic Integrated Circuits(MMIC) Power Combining Power Assignment Power Range 3-Db Bandwidth Sige Bicmos Technology Single Channel 65nm Cmos Array Feeder Active Baluns Coherent Noise Digital Signal Processing Gain Function High Reliability High Isolation Inductance Effect Lc Resonance Low Amplitude On-Board Planar Antenna Arrays Phase Inverter 15 Ghz Roll-Off Characteristics Relay Satellite System Spdt Switch Antenna Performance Bulk Cmos Coherent Gain Center Frequency Cmos Process Data Relay Satellite Low-Cost Low Loss Multi-Beam Satellite Output Amplifier Output Load Phase Shifting Vector Synthesis Three-Winding Transformer 16 Quadrature Amplitude Modulation(16QAM) 2.4 Ghz Recursive Structure Supply Voltage Wireless Communication System