Jose, Justin

Antenna Gain Info

Honeywell (Beijing) Technology Solutions Labs Co.,Ltd. 00010 2ARTN-00010 2ARTN00010 00010

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Document DEVICE REPORTGetApplicationAttachment.html?id=7389317
TC300 MURATA ANTENNA VERSION
Honeywell (Beijing) Technology Solutions Labs Co., Ltd.
A1 Building, C&W Industry Zone, No.14 Jiuxianqiao Road, Chaoyang District, 100015, Beijing, P.R. China

Table of Contents
1. WiFi Antenna Specifications 2. WiFi Antenna Design Model 3. Return Loss ( RL ) of WiFi Antenna 4. 3D Farfield Radiation Pattern 5. 2D Farfield Radiation Pattern 6. Design Summary

WiFi Antenna Specifications :

Parameters

Values

Antenna dimension
Antenna Gain Return Loss max in band ( S11 ) Bandwidth Efficiency ( System total Efficiency )
Impedance Antenna Diversity

15.75 x 6.28 mm
2.543 dBi at 2.45 GHz 3.582 dBi at 5.5 GHz -31.92 dB
91.4 MHz , at 2.4 GHz band 1.1 GHz , at 5 GHz band -1.895 dB ( 64.6 % ) at 2.45 GHz -1.021 dB ( 79 % ) at 5.5 GHz
50 ohm No

Table 1 : Performance Specifications of Dual Band WiFi Antenna

WiFi Antenna Design Model
Figure 1 : Dual Band WiFi Antenna Design model
· In the TC300 murata version, a single antenna covers both the WiFi bands : 2.4 GHz ( 2.4 to 2.5 GHz ) and 5 GHz ( 5 to 6 GHz )

Return Loss ( RL ) of WiFi Antenna
Figure 2 : Return loss plot of WiFi Antenna
· The WiFi Antenna Return loss plot is shown above , which has -10 dB bandwidth of 91.4 MHz & 1.1 GHz at 2.4 GHz & 5 GHz bands respectively
· The max Return loss is -31.92 dB · The bands under consideration are 2.4 GHz & 5 GHz , with minimum of 100
MHz & 1 GHz respectively .
3D Farfield Radiation Pattern

Figure 3 : 3D Radiation Pattern Plots of WiFi Antenna at the center frequencies of 2 bands

· In the 3D Radiation Pattern shown in Figure 3 , the Realized Gain is 2.543 dBi & 3.582 dBi at 2.4 GHz & 5 GHz resepectively with a Quasi Omni directional pattern coverage
· The average Antenna efficiency is over 71 % 2D Farfield Radiation Pattern
Figure 4 : 2D Radiation Pattern Plot of WiFi Antenna ( Phi = 0 degree )

Figure 5 : 2D Radiation Pattern Plot of WiFi Antenna ( Phi = 90 degree )

Figure 6 : 2D Radiation Pattern Plot of WiFi Antenna ( Theta = 90 degree )
· The 2D Radiation Pattern plots are shown in Fig 4 to 6 , in 3 different cut planes : Phi = 0 degree , Phi = 90 degree and Theta = 90 degree
· The frequency of reference used is 2.45 GHz and 5.5 GHz ( WiFi dual band Center Frequencies )
Design Summary · The WiFi Antenna used is a PCB Printed , special case of Inverted F type
antenna 15.75 x 6.28 mm · It has a Partial Omni directional pattern · It uses a single antenna without diversity with a bandwidth of 91.4 MHz and
1.1 GHz .



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