The document describes TLX, a PTFE/woven glass laminate material produced by Taconic. TLX has a tightly controlled dielectric constant between 2.45-2.65, low dissipation factor of 0.0019, and excellent mechanical and thermal properties. It can be used in applications such as radar systems, antennas, and RF components due to its dimensional stability, moisture resistance, and high breakdown voltage. TLX is available in various dielectric thicknesses and can be clad with copper on one or both sides.
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.
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.
The document describes TLX, a PTFE/woven glass laminate material produced by Taconic. TLX has a tightly controlled dielectric constant between 2.45-2.65, low dissipation factor of 0.0019, and excellent mechanical and thermal properties. It can be used in applications such as radar systems, antennas, and RF components due to its dimensional stability, moisture resistance, and high breakdown voltage. TLX is available in various dielectric thicknesses and can be clad with copper on one or both sides.
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.
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.
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.
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.
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.
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.
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.
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.
무선통신용 수동소자중 핵심을 이루는 부품인 안테나를 공부하는 과목이다. 무선장비에서 안테나가 제대로 동작하지 않으면 송수신을 할 수 없으므로 제대로된 안테나 설계와 선택이 반드시 필요하다.
본 수업에서는 안테나 특성을 이해하기 위해 안테나 용어, 안테나의 동작원리, 미소 안테나, 다이폴(dipole) 안테나, 루프(loop) 안테나, 광대역 안테나, 고이득 안테나, 배열 안테나, 마이크로스트립 패치 안테나 등에 대해 배운다. 또한, 설계능력을 기르기 위해 상용 프로그램(Ensemble SV)을 이용하여 학생들이 원하는 주파수대역(LTE, IMT-2000, WLAN 등)에서 마이크로스트립 패치 안테나를 직접 설계해 본다.
전파 및 안테나공학을 공부함으로써 이전에 배운 전자회로, 전자기학, 전자장론, 초고주파공학의 개념을 명확히 하고 실무용 안테나 설계에 응용할 수 있다.
1) Design a microstrip patch antenna for 5 GHz with dimensions l x w for dielectric constant εr = 2.2. Perform impedance matching with transfer impedance ZT and length lT when Zin = 250Ω and Z0 = 50Ω. Draw the antenna design.
2) Explain the design procedures for microstrip patch antennas and that a good substrate provides a balance of bandwidth, small size, and efficiency for antenna applications.
3) Array antennas are designed even when a single antenna is sufficient because an array provides directivity and gain through constructive and destructive interference from an array factor and element patterns.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
무선통신용 수동소자중 핵심을 이루는 부품인 안테나를 공부하는 과목이다. 무선장비에서 안테나가 제대로 동작하지 않으면 송수신을 할 수 없으므로 제대로된 안테나 설계와 선택이 반드시 필요하다.
본 수업에서는 안테나 특성을 이해하기 위해 안테나 용어, 안테나의 동작원리, 미소 안테나, 다이폴(dipole) 안테나, 루프(loop) 안테나, 광대역 안테나, 고이득 안테나, 배열 안테나, 마이크로스트립 패치 안테나 등에 대해 배운다. 또한, 설계능력을 기르기 위해 상용 프로그램(Ensemble SV)을 이용하여 학생들이 원하는 주파수대역(LTE, IMT-2000, WLAN 등)에서 마이크로스트립 패치 안테나를 직접 설계해 본다.
전파 및 안테나공학을 공부함으로써 이전에 배운 전자회로, 전자기학, 전자장론, 초고주파공학의 개념을 명확히 하고 실무용 안테나 설계에 응용할 수 있다.
1) Design a microstrip patch antenna for 5 GHz with dimensions l x w for dielectric constant εr = 2.2. Perform impedance matching with transfer impedance ZT and length lT when Zin = 250Ω and Z0 = 50Ω. Draw the antenna design.
2) Explain the design procedures for microstrip patch antennas and that a good substrate provides a balance of bandwidth, small size, and efficiency for antenna applications.
3) Array antennas are designed even when a single antenna is sufficient because an array provides directivity and gain through constructive and destructive interference from an array factor and element patterns.
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.
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.
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.
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.
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
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.
1. SurveyMonkey - 설문조사 결과
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2012-1학기 전파및안테나공학 강의평가
교육 편집 설문지 디자인 설문조사 진행 설문 결과 분석
요약 보기 기본 보고서
기본 보고서 + 보고서 추가
개별 응답 보기
응답 필터링 응답 요약 회신중인 전체 설문조사: 21
회신받은 전체 설문조사: 21 (100%)
응답 교차분석 페이지: 1
응답 다운로드
1. 수업을 통해 다이폴안테나, 루프안테나, 광대역안테나, 고이득안테나, 배열안테나 차트 만들기 다운로드
응답 공유 의 기본원리를 충분히 이해했습니까?
응답 응답
% 수
90% 이상 이해했다. 23.8% 5
60% 정도 이해했다. 57.1% 12
30% 정도 이해했다. 14.3% 3
거의 이해하지 못했다. 4.8% 1
답변한 질문 21
건너뛴 질문 0
http://ko.surveymonkey.com/MySurvey_Responses.aspx?sm=i3T9HszKKGD%2fzYFHnBJVktLxUKbjGjYzMmK4eCxGLCU%3d[2012-06-11 오후 6:07:46]
2. SurveyMonkey - 설문조사 결과
2. 안테나 설계 S/W인 Ansoft Ensemble의 사용법을 익혀 실무능력이 높아졌습니까? 차트 만들기 다운로드
응답 응답
% 수
설계 S/W를 아주 능숙하게 사용할 수 있어 실무에
23.8% 5
자신감이 생겼다.
설계 S/W를 사용할 수는 있지만 실무능력은 거의 향
23.8% 5
상되지 않았다.
설계 S/W 사용은 다소 미숙하지만 안테나 실무를 맡
38.1% 8
을 준비는 되었다.
노력했지만 설계 S/W의 사용법을 거의 모르겠다. 14.3% 3
답변한 질문 21
건너뛴 질문 0
3. 설계제한요소가 있는 초고주파 안테나를 설계해서 안테나 소자에 대한 자신감이 차트 만들기 다운로드
생겼습니까?
응답 응답
% 수
안테나 설계가 너무 쉬워 안테나 소자 이해에 도움이
4.8% 1
되지 않았다.
안테나 설계는 어려웠지만 프로젝트를 통해 안테나
66.7% 14
이해가 매우 향상되었다.
안테나 설계는 성공했지만 기계적으로 따라가기만
23.8% 5
했다.
http://ko.surveymonkey.com/MySurvey_Responses.aspx?sm=i3T9HszKKGD%2fzYFHnBJVktLxUKbjGjYzMmK4eCxGLCU%3d[2012-06-11 오후 6:07:46]
3. SurveyMonkey - 설문조사 결과
노력했지만 안테나 설계에 성공하지 못했다. 4.8% 1
답변한 질문 21
건너뛴 질문 0
4. 설계교과목이 아니지만 학습성과를 향상시키기 위하여 이론교육, 발표교육, 설계 차트 만들기 다운로드
교육을 병행하였습니다. 이러한 수업방식의 효과는 어느 정도라고 생각하십니까?
응답 응답
% 수
매우 효과적이다. 42.9% 9
어느 정도 효과가 있다. 52.4% 11
거의 효과가 없다. 4.8% 1
오히려 역효과가 있다. 0.0% 0
답변한 질문 21
건너뛴 질문 0
5. 본 교과목에 대한 강의를 통하여 꼭 개선되어야 할 사항이 있으면 간단히 적어주시기 바랍니다. 다운로드
응답
수
응답 숨기기 21
http://ko.surveymonkey.com/MySurvey_Responses.aspx?sm=i3T9HszKKGD%2fzYFHnBJVktLxUKbjGjYzMmK4eCxGLCU%3d[2012-06-11 오후 6:07:46]
4. SurveyMonkey - 설문조사 결과
응답자 (21) 텍스트 분석 내 분류 (0)
GOLD 기능: 텍스트 분석 기능을 사용하시면 자주 사용된 단어와 구절을 확인하고 응 자세히 알아보기 업그레이드 »
답을 분류하며 서술형 텍스트를 실제로 사용할수 있는 데이터로 변환할 수 있습니다. 텍
스트 분석 기능을 사용하시려면 GOLD 또는 PLATINUM 서비스로 업그레이드하십시오.
21개의 텍스트 응답을 표시하기 선택한 응답 없음
강의 설명보다는 실습에 중점을 두는것이 이해에 도움이 될것같습니다.
2012-6-11 AM 10:48 응답 보기
좀... 어려운거같아요
2012-6-11 AM 10:44 응답 보기
없습니다
2012-6-11 AM 10:44 응답 보기
안테나 설계 실습때 사용하는 프로그램 사용법이 익숙치가 않아서 힘들었습니다.
2012-6-11 AM 10:43 응답 보기
설계 수업시 조금더 천천히 설명해 주셨으면 합니다.
2012-6-11 AM 10:43 응답 보기
너무 어려워요
2012-6-11 AM 10:43 응답 보기
답변한 질문 21
건너뛴 질문 0
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http://ko.surveymonkey.com/MySurvey_Responses.aspx?sm=i3T9HszKKGD%2fzYFHnBJVktLxUKbjGjYzMmK4eCxGLCU%3d[2012-06-11 오후 6:07:46]