Datasheet

APPLICATION SPECIFICATION
REVISION:
ECR/ECN INFORMATION:
TITLE:
868/915MHz Dipole Flexible Antenna
Application Specification
SHEET No.
B
EC No:
626150
17 of 20
DATE:
2019/10/23
DOCUMENT NUMBER:
CREATED / REVISED BY:
CHECKED BY:
APPROVED BY:
AS-2067640100
Liu Hai 2019/10/23
Cheng Kang 2019/10/23
Andy Zhang 2019/10/23
TEMPLATE FILENAME: APPLICATION_SPEC[SIZE_A](V.1).DOC
7.2 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 7.2.1. 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. The minimum distance between antenna and plane ground is recommended to be
20mm to achieve acceptable RF performance.
FIGURE 7.2.1 FOUR LOCATIONS WITH VERTICAL PLANE GROUND
Ground Size: 90mm*90mm;
Location 1: Distance between antenna and plane ground (GAP) is about 5mm;
Location 2: Distance between antenna and plane ground (GAP) is about 10mm;
Location 3: Distance between antenna and plane ground (GAP) is about 15mm;
Location 4: Distance between antenna and plane ground (GAP) is about 20mm.