APPLICATION SPECIFICATION 868/915MHZ FLEXIBLE ANTENNA TABLE OF CONTENTS 1.0 SCOPE 2.0 PRODUCT DESCRIPTION 3.0 APPLICABLE DOCUMENTS 4.0 ANTENNA PERFORMANCE 5.0 ASSEMBLY GUIDELINE 6.0 RF PERFORMANCE AS A FUNCTION OF IMPLEMENTATION REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No.
APPLICATION SPECIFICATION 868/915MHZ FLEXIBLE ANTENNA 1.0 SCOPE This specification describes the antenna application and surrounding. The information in this document is for reference and benchmark purposes only. The user is responsible for validating antenna rf performance based on the user’s actual implementation. Antenna illustrations in this document are generic representations. They are not intended to be an image of any antenna listed in the scope. 2.0 PRODUCT DESCRIPTION 2.
APPLICATION SPECIFICATION 3.0 APPLICABLE DOCUMENTS DOCUMENT NUMBER DESCRIPTION Sale Drawing(SD) SD-2111400100 Mechanical Dimension of the product Product Specification (PS) PS-2111400100 Product Specification Packing Drawing(PK) PK-2111400100 Product packaging specifications 4.0 ANTENNA PERFORMANCE 4.1 RF TEST CONDITIONS All measurements are done of the antenna mounted on a PC/ABS material block of 1.5mm thickness with VNA Agilent 5071C and Over-The-Air (OTA) chamber.
APPLICATION SPECIFICATION FIGURE4.1.2 ANTENNA LOADED WITH PC/ABS BLOCK OF 1.5 MM THICKNESS WITH VNA REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No. 868/915MHz Flexible Antenna Application Specification 4 of 20 CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2018/11/29 Cheng Kang 2018/11/29 Chris Zhong 2018/11/29 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION FIGURE4.1.3 ANTENNA LOADED WITH PC/ABS BLOCK OF 1.5 MM THICKNESS WITH OTA CHAMBER REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No. 868/915MHz Flexible Antenna Application Specification 5 of 20 CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2018/11/29 Cheng Kang 2018/11/29 Chris Zhong 2018/11/29 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION 4.2 ANTENNA PERFORMANCE DESCRIPTION EQUIPMENT REQUIREMENT Frequency Range VNA E5071C Return Loss VNA E5071C Peak Gain (Max) OTA Chamber 0.3dBi 1.0dBi Average Total Efficiency OTA Chamber >55% >60% Polarization OTA Chamber Linear Input Impedance VNA E5071C 50 ohms 868-870MHz 902-928MHz <- 5dB Note that the above antenna performance is measured with just the antenna mounted on a PC/ABS block to similar a free-space condition.
APPLICATION SPECIFICATION 4.3 RETURN LOSS PLOT All measurements in this document are done with a cable length of 100mm. FIGURE 4.3.1 RETURN LOSS OF ANTENNA AT 868/915MHZ IN FREE SPACE REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No.
APPLICATION SPECIFICATION 4.4 EFFICIENCY PLOT All measurements in this document are done with a cable length of 100mm. FIGURE 4.4.1 EFFICIENCY OF ANTENNA AT 868/915MHZ IN FREE SPACE REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No.
APPLICATION SPECIFICATION 4.5 RADIATION PATTERN All measurements in this document are done with a cable length of 100mm. FIGURE 4.5.1 2D RADIATION PATTERN OF ANTENNA AT 868MHZ IN FREE SPACE REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No.
APPLICATION SPECIFICATION FIGURE 4.5.2 2D RADIATION PATTERN OF ANTENNA AT 915MHZ IN FREE SPACE REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No. 868/915MHz Flexible Antenna Application Specification 10 of 20 CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2018/11/29 Cheng Kang 2018/11/29 Chris Zhong 2018/11/29 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION FIGURE 4.5.3 3D RADIATION PATTERN OF ANTENNA AT 868MHZ IN FREE SPACE REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No. 868/915MHz Flexible Antenna Application Specification 11 of 20 CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2018/11/29 Cheng Kang 2018/11/29 Chris Zhong 2018/11/29 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION FIGURE 4.5.4 3D RADIATION PATTERN OF ANTENNA AT 915MHZ IN FREE SPACE REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No. 868/915MHz Flexible Antenna Application Specification 12 of 20 CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2018/11/29 Cheng Kang 2018/11/29 Chris Zhong 2018/11/29 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION 5.0 ASSEMBLY GUIDELINE The flex antenna comes with an adhesive 3m9077 for assemble onto the plastic wall of the system. The surface should be smooth with ra<1.6um and need to clean the surface before sticking this product. The antenna cannot be placed on a metallic surface. 5.1 HOW TO TEAR FLEX RELEASE PAPER 1. Find cut line on flex back side 2. Bend flex slight along cut line 3.
APPLICATION SPECIFICATION 5.2 CABLE BENDING During the assembly of the antenna in a device, the cable needs to be positioned away from the antenna flex to achieve best performance. The cable must be away from the Flex edge at least 5mm as shown in figure 5.2.1. If the cable bends into the antenna flex, the antenna performance will be degraded. FIGURE 5.2.1 CABLE BENDING FIGURE 5.2.2 CABLE ACTIVITY RANGE FIGURE 5.2.
APPLICATION SPECIFICATION 6.0 RF PERFORMANCE AS A FUNCTION OF IMPLEMENTATION 6.1 ANTENNA RF PERFORMANCE AS A FUNCTION OF DIFFERENT LOCATIONS WITH PARALLEL PLANE GROUND Four locations with parallel plane ground have been evaluated and these locations are shown in figure 6.1.1. The plane ground size is 90mm*90mm and we move the plane ground to four locations for each test. The antenna performance is better with larger distance between antenna and parallel plane ground.
APPLICATION SPECIFICATION FIGURE 6.1.2 RETURN LOSS OF ANTENNA AT 868/915MHZ AT FOUR LOCATIONS WITH PARALLEL PLANE GROUND FIGURE 6.1.3 EFFICIENCY OF ANTENNA AT 868/915MHZ AT FOUR LOCATIONS WITH PARALLEL PLANE GROUND REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No.
APPLICATION SPECIFICATION 6.2 ANTENNA RF PERFORMANCE AS A FUNCTION OF DIFFERENT LOCATIONS WITH VERTICAL PLANE GROUND Four locations with vertical plane ground have been evaluated and these locations are shown in figure 6.2.1. The plane ground size is 90mm*90mm and we move the plane ground to four locations for each test. The antenna performance is better with larger distance between antenna and vertical plane ground.
APPLICATION SPECIFICATION FIGURE 6.2.2 RETURN LOSS OF ANTENNA AT 868/915MHZ AT FOUR LOCATIONS WITH VERTICAL PLANE GROUND FIGURE 6.2.3 EFFICIENCY OF ANTENNA AT 868/915MHZ AT FOUR LOCATIONS WITH VERTICAL PLANE GROUND REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No.
APPLICATION SPECIFICATION 6.3 ANTENNA RF PERFORMANCE AS A FUNCTION OF DIFFERENT DISTANCES WITH PARALLEL PLANE GROUND Four locations with the parallel plane ground have been evaluated and these locations are shown in figure 6.3.1. The plane ground size is 90mm*90mm and we move the plane ground to four locations for each test. The antenna performance is better with larger distance between the antenna and the parallel plane ground.
APPLICATION SPECIFICATION FIGURE 6.3.2 RETURN LOSS OF ANTENNA AT 868/915MHZ AT FOUR LOCATIONS WITH PARALLEL PLANE GROUND FIGURE 6.3.3 EFFICIENCY OF ANTENNA AT 868/915MHZ AT FOUR LOCATIONS WITH PARALLEL PLANE GROUND REVISION: A ECR/ECN INFORMATION: TITLE: EC No: 608264 DATE: 2018/12/03 DOCUMENT NUMBER: AS-2111400100 SHEET No.
