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Taconic RF-60A
RF-60A is an organic-ceramic laminate material produced by Taconic. It exhibits low moisture absorption, dimensional stability, and a stable dielectric constant over frequency. RF-60A can be used in applications such as power amplifiers, filters, couplers, passive components, and antennas due to its high flexural strength, low z-axis expansion, and resistance to soldering. The document provides details on RF-60A's properties, compliance standards, processing methods, and ordering information.
TLY Family of Low Loss Laminates
This document provides information on Taconic's TLY family of low loss laminate materials. It describes the key properties and benefits of TLY laminates, which use a woven fiberglass matrix that makes them more dimensionally stable than chopped fiber composites. They have very low dissipation factors suitable for applications up to 77 GHz like automotive radar. Flexible TLY-3F laminates are introduced for applications requiring some bend radius. Laser ablation properties of TLY laminates are also discussed and compared to chopped fiber composites.
2006-1 중간고사문제(안테나공학)
This document contains exam questions about antenna engineering parameters for a Hertzian dipole antenna operating at 13 GHz. The questions ask the examinee to: (1) calculate the E-field, H-field, radiation power, resistance, and input impedance at given distances and angles from the antenna; (2) draw the input impedance on a Smith chart; and (3) compare resonance characteristics of Hertzian and half-wave dipole antennas without using formulas. An additional question asks the examinee to explain electromagnetic wave radiation by a antenna in terms of current density and vector potential without using textbook formulas.
2012-1 기말고사문제(안테나공학)
The document contains questions about designing antennas for WiFi applications. For a dipole antenna operating at 2.4 GHz, it asks to calculate the antenna length, reflection coefficient and VSWR when the input impedance is 73 ohms and the transmission line impedance is 50 ohms. It also asks how to reduce the antenna length while keeping the resonant frequency fixed. For a microstrip patch antenna at 3.7 GHz, it asks to determine the antenna dimensions, calculate the reflection coefficient and VSWR when the input impedance is 200 ohms and transmission line impedance is 50 ohms, and design a quarter-wave transformer.
2012-1 중간고사문제(안테나공학)
1) The reflection coefficient Γ is calculated for a coaxial line with resistors R=12Ω and R=213Ω attached. The VSWR is also calculated for each case.
2) The reflection coefficient Γ is calculated for a coaxial line with a capacitor C=12pF attached.
3) Parameters of a Hertzian dipole antenna are calculated including the E-field and H-field at a distance of 1km from the antenna oriented at 90° and 90°, and the phase at the end of the dipole.
RT/duroid 6006-6010 Laminate Datasheet
RT/duroid® 6006/6010LM microwave laminates are
ceramic-PTFE composites designed for electronic
and microwave circuit applications requiring a
high dielectric constant. RT/duroid 6006 laminate
is available with a dielectric constant value of 6.15
and RT/duroid 6010LM laminate has a dielectric
constant of 10.2.
RT/duroid 6002 Laminate Datasheet
This 3 sentence summary provides the key details about the document:
The document is a data sheet that describes RT/duroid 6002, a low loss and low dielectric constant laminate material that offers superior electrical and mechanical properties for designing complex microwave structures. RT/duroid 6002 has a very low thermal coefficient of dielectric constant, low z-axis coefficient of thermal expansion, and excellent dimensional stability which make it well-suited for applications such as antennas, circuits requiring interlayer connections, and aerospace designs. The data sheet provides typical property values for RT/duroid 6002 and notes it is available in standard thicknesses from 0.005 to 0.120 inches with copper or other metal cladding.
FR4
FR-4 is a woven glass fabric laminated with epoxy resin that is commonly used in printed circuit boards. It is flame retardant and meets the UL94 V-0 flammability standard. FR-4 has good mechanical properties like flexural and tensile strength, as well as high maximum operating temperature and arc resistance, making it suitable for circuit board applications.
Recommended
Taconic RF-60A
RF-60A is an organic-ceramic laminate material produced by Taconic. It exhibits low moisture absorption, dimensional stability, and a stable dielectric constant over frequency. RF-60A can be used in applications such as power amplifiers, filters, couplers, passive components, and antennas due to its high flexural strength, low z-axis expansion, and resistance to soldering. The document provides details on RF-60A's properties, compliance standards, processing methods, and ordering information.
TLY Family of Low Loss Laminates
This document provides information on Taconic's TLY family of low loss laminate materials. It describes the key properties and benefits of TLY laminates, which use a woven fiberglass matrix that makes them more dimensionally stable than chopped fiber composites. They have very low dissipation factors suitable for applications up to 77 GHz like automotive radar. Flexible TLY-3F laminates are introduced for applications requiring some bend radius. Laser ablation properties of TLY laminates are also discussed and compared to chopped fiber composites.
2006-1 중간고사문제(안테나공학)
This document contains exam questions about antenna engineering parameters for a Hertzian dipole antenna operating at 13 GHz. The questions ask the examinee to: (1) calculate the E-field, H-field, radiation power, resistance, and input impedance at given distances and angles from the antenna; (2) draw the input impedance on a Smith chart; and (3) compare resonance characteristics of Hertzian and half-wave dipole antennas without using formulas. An additional question asks the examinee to explain electromagnetic wave radiation by a antenna in terms of current density and vector potential without using textbook formulas.
2012-1 기말고사문제(안테나공학)
The document contains questions about designing antennas for WiFi applications. For a dipole antenna operating at 2.4 GHz, it asks to calculate the antenna length, reflection coefficient and VSWR when the input impedance is 73 ohms and the transmission line impedance is 50 ohms. It also asks how to reduce the antenna length while keeping the resonant frequency fixed. For a microstrip patch antenna at 3.7 GHz, it asks to determine the antenna dimensions, calculate the reflection coefficient and VSWR when the input impedance is 200 ohms and transmission line impedance is 50 ohms, and design a quarter-wave transformer.
2012-1 중간고사문제(안테나공학)
1) The reflection coefficient Γ is calculated for a coaxial line with resistors R=12Ω and R=213Ω attached. The VSWR is also calculated for each case.
2) The reflection coefficient Γ is calculated for a coaxial line with a capacitor C=12pF attached.
3) Parameters of a Hertzian dipole antenna are calculated including the E-field and H-field at a distance of 1km from the antenna oriented at 90° and 90°, and the phase at the end of the dipole.
RT/duroid 6006-6010 Laminate Datasheet
RT/duroid® 6006/6010LM microwave laminates are
ceramic-PTFE composites designed for electronic
and microwave circuit applications requiring a
high dielectric constant. RT/duroid 6006 laminate
is available with a dielectric constant value of 6.15
and RT/duroid 6010LM laminate has a dielectric
constant of 10.2.
RT/duroid 6002 Laminate Datasheet
This 3 sentence summary provides the key details about the document:
The document is a data sheet that describes RT/duroid 6002, a low loss and low dielectric constant laminate material that offers superior electrical and mechanical properties for designing complex microwave structures. RT/duroid 6002 has a very low thermal coefficient of dielectric constant, low z-axis coefficient of thermal expansion, and excellent dimensional stability which make it well-suited for applications such as antennas, circuits requiring interlayer connections, and aerospace designs. The data sheet provides typical property values for RT/duroid 6002 and notes it is available in standard thicknesses from 0.005 to 0.120 inches with copper or other metal cladding.
FR4
FR-4 is a woven glass fabric laminated with epoxy resin that is commonly used in printed circuit boards. It is flame retardant and meets the UL94 V-0 flammability standard. FR-4 has good mechanical properties like flexural and tensile strength, as well as high maximum operating temperature and arc resistance, making it suitable for circuit board applications.
Android - Sensor Manager
The document discusses Android's Sensor Manager and how it works with sensors. It covers the SensorManager class, which allows apps to access sensor data, and the SensorEventListener interface that apps must implement to receive sensor updates. It also lists some of the different types of sensors available on Android devices like accelerometers, gyroscopes, and light sensors.
Android - Broadcast Receiver
This document discusses BroadcastReceivers in Android. A BroadcastReceiver is an intent-based publish-subscribe system that allows apps to receive system events like SMS messages. BroadcastReceivers can receive and react to system broadcasts, broadcasts from other apps, and initiate broadcasts to other apps. They are registered either dynamically in code or statically in the AndroidManifest.xml file. Broadcasts are sent using the sendBroadcast or sendOrderedBroadcast methods and an Intent. Ordered broadcasts are executed in a defined order while normal broadcasts run asynchronously. The BroadcastReceiver object is only valid during the onReceive method call.
Android - Message
1. The document discusses the Android application lifecycle and how activities can transition between different states like onCreate, onStart, onResume, onPause, onStop, and onDestroy.
2. It also covers the activity lifecycle methods and how they relate to different states, as well as how to save and restore activity instance states.
3. Additionally, it provides comparisons between the Android and Windows lifecycles and messaging systems, and introduces concepts like handlers, loopers, threads, and the context class in Android.
Cloud Computing
This document provides an overview of cloud computing fundamentals. It defines cloud computing as on-demand access to configurable computing resources over the internet. The document discusses key cloud concepts like deployment models (private, public, hybrid, community clouds), service models (IaaS, PaaS, SaaS), and requirements for cloud services. Popular cloud providers like AWS, Azure, Google Cloud are presented for each service model. Benefits of cloud computing are also highlighted such as reduced costs, flexibility, and global access to resources.
BJT - Analysis of Bias
This document summarizes the analysis of bias for a BJT (bipolar junction transistor) circuit. It includes:
1. An overview of different BJT amplifier configurations - common emitter (CE), common base (CB), and common collector (CC).
2. A description of the bias point as the quiescent operating point in the active mode.
3. An analysis of the bias for a CE amplifier using a Thevenin equivalent circuit and equations for the base-emitter loop and collector-emitter loop to solve for collector current and CE voltage.
4. Guidelines for selecting resistor values in the bias network, including RB being greater than 10kΩ, RE being
Cloud Service Model
This document discusses the different cloud service models of Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides basic computing resources like servers and storage. PaaS provides development tools and platforms for building applications. SaaS provides complete software solutions that are accessed via the internet. Popular providers for each service model are also mentioned.
RF 증폭기 설계(Design of RF Amplifier)-rev1
고주파 신호를 증폭하는 RF 증폭기를 설계하여 CE 증폭기의 기본 원리인 Bias와 증폭도를 이해하고 CE 증폭기를 설계하고 제작할 수 있다.
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Android - Sensor Manager
The document discusses Android's Sensor Manager and how it works with sensors. It covers the SensorManager class, which allows apps to access sensor data, and the SensorEventListener interface that apps must implement to receive sensor updates. It also lists some of the different types of sensors available on Android devices like accelerometers, gyroscopes, and light sensors.
Android - Broadcast Receiver
This document discusses BroadcastReceivers in Android. A BroadcastReceiver is an intent-based publish-subscribe system that allows apps to receive system events like SMS messages. BroadcastReceivers can receive and react to system broadcasts, broadcasts from other apps, and initiate broadcasts to other apps. They are registered either dynamically in code or statically in the AndroidManifest.xml file. Broadcasts are sent using the sendBroadcast or sendOrderedBroadcast methods and an Intent. Ordered broadcasts are executed in a defined order while normal broadcasts run asynchronously. The BroadcastReceiver object is only valid during the onReceive method call.
Android - Message
1. The document discusses the Android application lifecycle and how activities can transition between different states like onCreate, onStart, onResume, onPause, onStop, and onDestroy.
2. It also covers the activity lifecycle methods and how they relate to different states, as well as how to save and restore activity instance states.
3. Additionally, it provides comparisons between the Android and Windows lifecycles and messaging systems, and introduces concepts like handlers, loopers, threads, and the context class in Android.
Cloud Computing
This document provides an overview of cloud computing fundamentals. It defines cloud computing as on-demand access to configurable computing resources over the internet. The document discusses key cloud concepts like deployment models (private, public, hybrid, community clouds), service models (IaaS, PaaS, SaaS), and requirements for cloud services. Popular cloud providers like AWS, Azure, Google Cloud are presented for each service model. Benefits of cloud computing are also highlighted such as reduced costs, flexibility, and global access to resources.
BJT - Analysis of Bias
This document summarizes the analysis of bias for a BJT (bipolar junction transistor) circuit. It includes:
1. An overview of different BJT amplifier configurations - common emitter (CE), common base (CB), and common collector (CC).
2. A description of the bias point as the quiescent operating point in the active mode.
3. An analysis of the bias for a CE amplifier using a Thevenin equivalent circuit and equations for the base-emitter loop and collector-emitter loop to solve for collector current and CE voltage.
4. Guidelines for selecting resistor values in the bias network, including RB being greater than 10kΩ, RE being
Cloud Service Model
This document discusses the different cloud service models of Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides basic computing resources like servers and storage. PaaS provides development tools and platforms for building applications. SaaS provides complete software solutions that are accessed via the internet. Popular providers for each service model are also mentioned.
RF 증폭기 설계(Design of RF Amplifier)-rev1
고주파 신호를 증폭하는 RF 증폭기를 설계하여 CE 증폭기의 기본 원리인 Bias와 증폭도를 이해하고 CE 증폭기를 설계하고 제작할 수 있다.