APPLICATION SPECIFICATION TITLE GPS L1/L5 25MM STACKED PATCH ANTENNA TABLE OF CONTENTS 1.0 SCOPE 2.0 PRODUCT DESCRIPTION 3.0 APPLICABLE DOCUMENTS 4.0 ANTENNA PERFORMANCE 5.0 RF PERFORMANCE AS A FUNCTION OF IMPLEMENTATION REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION GPS L1+L5 PATCH CERAMIC 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. All measurements are done of the antenna mounted on the recommended PCB with VNA Agilent 5071C and OTA chamber. Antenna illustrations in this document are generic representations.
APPLICATION SPECIFICATION 3.0 4.0 APPLICABLE DOCUMENTS DOCUMENT NUMBER DESCRIPTION Sale Drawing (SD) SD-2122030001 Mechanical Dimension of the product Product Specification (PS) PS-2122030001 Product Specification Packing Drawing (PK) PK-2122030001 Product packaging specifications ANTENNA PERFORMANCE 4.
APPLICATION SPECIFICATION The PCB size is 70mm*70mm*1.5mm The Antenna is fixed and soldered at the center of reference PCB with the size of 70mm*70mm and the test coaxial cable length is 100mm. REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 4.2 RF TEST CONDITIONS All measurements are done of the antenna mounted on a 70*70mm PCB with VNA Agilent E5071C and Over-The-Air (OTA) chamber. All measurements in this document are done with the part no.2122030001 with reference PCB. DUT FIGURE4.2.1 ANTENNA LOADED WITH REFERENCE PCB WITH VNA DUT FIGURE4.2.2 ANTENNA LOADED WITH REFERENCE PCB WITH OTA CHAMBER REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 4.3 ANTENNA PERFORMANCE DESCRIPTION EQUIPMENT REQUIREMENT Frequency Range VNA E5071C GSP L5:1176.45MHz GPS L1:1575.42 MHz Return Loss VNA E5071C <- 20dB <-15dB Peak Gain (Max) OTA Chamber 3.1dBi 4.
APPLICATION SPECIFICATION 4.4 RETURN LOSS PLOT All measurements in this document are done on the reference PCB. FIGURE 4.4.1 RETURN LOSS OF ANTENNA AT GPS L5 BAND IN FREE SPACE FIGURE 4.4.2 RETURN LOSS OF ANTENNA AT GPS L1 BAND IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 4.5 EFFICIENCY PLOT All measurements in this document are done on the reference PCB. FIGURE 4.5.1 EFFICIENCY OF ANTENNA AT GPS L5 BAND IN FREE SPACE FIGURE 4.5.2 EFFICIENCY OF ANTENNA AT GPS L1 BAND IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 4.6 PEAK GAIN PLOT All measurements in this document are done on the reference PCB. FIGURE 4.6.1 PEAK GAIN OF ANTENNA AT GPS L5 BAND IN FREE SPACE FIGURE 4.6.2 PEAK GAIN OF ANTENNA AT GPS L1 BAND IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 4.7 AXIAL RATIO PLOT All measurements in this document are done on the reference PCB. FIGURE 4.7.1 AXIAL RATIO OF ANTENNA AT GPS L5 BAND IN FREE SPACE FIGURE 4.7.2 AXIAL RATIO OF ANTENNA AT GPS L1 BAND IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 4.8 RADIATION PATTERN All measurements in this document are done on the reference PCB. FIGURE 4.8.1 2D RADIATION PATTERN OF ANTENNA AT 1176MHZ IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 4.8.2 2D RADIATION PATTERN OF ANTENNA AT 1575MHZ IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No. GPS L1/L5 25mm Stacked Patch Antenna 12 of 34 Application Specification CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2019/04/16 Cheng Kang 2019/04/16 Andy Zhang 2019/04/16 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION FIGURE 4.8.4 3D RADIATION PATTERN OF ANTENNA AT 1176MHZ IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No. GPS L1/L5 25mm Stacked Patch Antenna 13 of 34 Application Specification CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2019/04/16 Cheng Kang 2019/04/16 Andy Zhang 2019/04/16 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION FIGURE 4.8.5 3D RADIATION PATTERN OF ANTENNA AT 1575MHZ IN FREE SPACE REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No. GPS L1/L5 25mm Stacked Patch Antenna 14 of 34 Application Specification CREATED / REVISED BY: CHECKED BY: APPROVED BY: Liu Hai 2019/04/16 Cheng Kang 2019/04/16 Andy Zhang 2019/04/16 TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).
APPLICATION SPECIFICATION 5.0 RF PERFORMANCE AS A FUNCTION OF IMPLEMENTATION 5.1 ANTENNA RF PERFORMANCES AS A FUNCTION OF DIFFERENT LOCATIONS ON THE GROUND PLANE Three locations have been evaluated, and these configurations are show in figure 5.1.0. The figure 5.1.1-5.1.8 are shown the return loss, the efficiency, the peak gain and axial ratio. The location which gives the best RF performance is location 1. Location 1 (center location) is the recommended location for the antenna. FIGURE 5.1.
APPLICATION SPECIFICATION FIGURE 5.1.1 RETURN LOSS OF ANTENNA AT GPS L5 BAND AT THREE LOCATIONS FIGURE 5.1.2 RETURN LOSS OF ANTENNA AT GPS L1 BAND AT THREE LOCATIONS REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.1.3 EFFICIENCY OF ANTENNA AT GPS L5 BAND AT THREE LOCATIONS FIGURE 5.1.4 EFFICIENCY OF ANTENNA AT GPS L1 BAND AT THREE LOCATIONS REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.1.5 PEAK GAIN OF ANTENNA AT GPS L5 BAND AT THREE LOCATIONS FIGURE 5.1.6 PEAK GAIN OF ANTENNA AT GPS L1 BAND AT THREE LOCATIONS REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.1.7 AXIAL RATIO OF ANTENNA AT GPS L5 BAND AT THREE LOCATIONS FIGURE 5.1.8 AXIAL RATIO OF ANTENNA AT GPS L1 BAND AT THREE LOCATIONS REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 5.2 ANTENNA RF PERFORMANCES AS A FUNCTION OF DIFFERENT SIZED GROUNDS 5 kinds of ground plane size have been evaluated, and these configurations are show in figure 5.2.0. The figure 5.2.1-5.2.8 are shown the return loss, the efficiency, the peak gain and axial ratio. The ground plane size for this antenna is recommended to be 70mm*70mm (reference size) to meet the antenna specification. (W*L:25mm*25mm、50mm*50mm、70mm*70mm、90mm*90mm、120mm*120mm) FIGURE 5.2.
APPLICATION SPECIFICATION FIGURE 5.2.1 RETURN LOSS OF ANTENNA AT GPS L5 BAND WITH DIFFERENT GROUND SIZES FIGURE 5.2.2 RETURN LOSS OF ANTENNA AT GPS L1 BAND WITH DIFFERENT GROUND SIZES REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.2.3 EFFICIENCY OF ANTENNA AT GPS L5 BAND WITH DIFFERENT GROUND SIZES FIGURE 5.2.4 EFFICIENCY OF ANTENNA AT GPS L1 BAND WITH DIFFERENT GROUND SIZES REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.2.5 PEAK GAIN OF ANTENNA AT GPS L5 BAND WITH DIFFERENT GROUND SIZES FIGURE 5.2.6 PEAK GAIN OF ANTENNA AT GPS L1 BAND WITH DIFFERENT GROUND SIZES REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.2.7 AXIAL RATIO OF ANTENNA AT GPS L5 BAND WITH DIFFERENT GROUND SIZES FIGURE 5.2.8 AXIAL RATIO OF ANTENNA AT GPS L1 BAND WITH DIFFERENT GROUND SIZES REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 5.3 RF PERFORMANCE AS A FUNCTION OF DIFFERENT DISTANCE BETWEEN VERTICAL METAL MATERIAL AND ANTENNA An evaluation was done with 4 different distances from the antenna which is located at the recommended location to the vertical metal material (50mm x 4mm x 2mm). The 4 distances are as following: 1mm, 3mm, 5mm, 7mm. From the study, we recommend that a metal material (50mm x 4mm x 2mm) should be placed at least 7mm away from the antenna.
APPLICATION SPECIFICATION FIGURE 5.3.1 RETURN LOSS OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL FIGURE 5.3.2 RETURN LOSS OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.3.3 EFFICIENCY OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL FIGURE 5.3.4 EFFICIENCY OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.3.5 PEAK GAIN OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL FIGURE 5.3.6 PEAK GAIN OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.3.7 AXIAL RATIO OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL FIGURE 5.3.8 AXIAL RATIO OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND VERTICAL METAL MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION 5.4 RF PERFORMANCE AS A FUNCTION OF DIFFERENT DISTANCE BETWEEN HORIZONTAL PLASTIC COVER AND ANTENNA An evaluation was done with 5 different distances from antenna to the horizontal plastic cover (50mm x 50mm x 2mm). The 5 distances are as following: 0mm、3mm、5mm、7mm. From the study, we recommend that a plastic cover (50mm x 50mm x 2mm) should be placed at least 3mm away from the antenna. When the distance is less than 3mm, the antenna performance will be deviation.
APPLICATION SPECIFICATION FIGURE 5.4.1 RETURN LOSS OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL FIGURE 5.4.2 RETURN LOSS OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.4.3 EFFICIENCY OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL FIGURE 5.4.4 EFFICIENCY OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.4.5 PEAK GAIN OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL FIGURE 5.4.6 PEAK GAIN OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
APPLICATION SPECIFICATION FIGURE 5.4.7 AXIAL RATIO OF ANTENNA AT GPS L5 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL FIGURE 5.4.8 AXIAL RATIO OF ANTENNA AT GPS L1 BAND AT DIFFERENT DISTANCES BETWEEN ANTENNA AND HORIZONTAL PLASTIC MATERIAL REVISION: A1 ECR/ECN INFORMATION: TITLE: EC No: 616280 DATE: 2019/04/26 DOCUMENT NUMBER: AS-2122030001 SHEET No.
