Research topics
Haruichi Kanaya
Kyushu University
Web: http://yossvr0.ed.kyushu-u.ac.jp
E-mail: kanaya@ed.kyushu-u.ac.jp

RFIC Japan1

Frequency allocation
THz communication,Sensor

calibration
signalShip, AM radioAnticollision
RaderFM, TV

Ship, Air plane

Smart phone, DTV,WLAN, hot spot
Satellite, WLAN

2UWB Amplifiers TSMC 0.18um CMOSUWB Power Amplifier
Average Gain=14.5±0.5 dB

S21
S11S22UWB Low Noise AmplifierLNA-Mixer (Down converter)
Measured Voltage Gain vs. IF frequency
30Voltage Gain, dB

25

201510(RF=5.1GHz)

5002550

75100125150

Frequency, MHz45GHz power amplifier module

研究内容 － PAチップ
Chip photo

Chip size：0.9×0.9mm
CAD tools： ADS , Vioruoso
5Technorogy： TSMC 0.18μｍ CMOS

Packagingresults
研究内容Measured－ PAモジュール化・ボンデ
ィング
2060

1550

1040

530

Module020

Brae chip-510-100-40 -35 -30 -25 -20 -15 -10 -505

Pin[dBm]

Input-output comparison
Bare chip

ModulePout[dBm]

15.4

15.9

PAE[%]

42.041.0

6No performancedegradation

10PAE[%]

Pout[dBm]

Frequency：5.2GHzAntenna design

7

UWB Full band antenna on flexible substrate

Plaster: 70 mm x 18 mm

Future Image

Bandwidth：3.1~11.4GHz
Radiation patterns (yz plane)
Sensor, RF andflexible antenna

3.1GHz6.0GHz

89.0GHz--- simulation― measure zyx

Comparison table
One-sided directional slot antenna

Patch antennattSize reduction (No large GND)
Thin substrate
Thicknesst [µm]

One-sided
directional slot
Patch
9Gain
[dBi]

100

150

200

300

3.35

3.73

5.29

5.62

-1.41

2.47

4.73

5.85
@28GHz5G/beyond 5G 4x4 array antenna
5G

Simulated 330
Measured3000030(dB)-1060-20-30

27090240

120210180

Measuredgain
150=12.8dBi @27.9 GHz

NTT docomo M2M system and Watching security system
M2M@ Kyushu Ten Co.
GPS2GHzUHF

Watchingsecurity system

M2M: Machine to machine11Antenna on chip for 1THz imaging
THz

MWIR

Light

Frequency
Wavelength

Noise-equivalent powerDielectric transition
Metal absorption
Chemical absorption
Atmospheric window

Si image sensor

Bolometer(NEC)

NEP: S/N=1

Goal12THz image sensor

SiO2-SubSi-ROIC
13

Antenna on quartz for 1THz imaging
290μm□

InAs MOS HEMT on quartz glass

G S G141THz Measured setup
T wave probe, T1100-GSG-25,
WR1.0 (750 GHz – 1.1THz)

Monitor(Probe section)

RX expander

SA:N9010A
SG: N5173B

TX expanderAntenna measurement

16

Energy harvesting
Numerous unused energy sources exist for producing sufficientelectrical power to run low-power embedded systems.
Different technologies of energy harvester

Vibration/MotionLight
ISM (industry, science,medical) band

Temperature
Difference
17RF
Radio wirelessfrequency

Medical applicationEndoscopic surgery

Radiography system
exposure

腹腔鏡手術

protective clothing

CameraRadiograpy

Out side of thestomach andintestines

In side of thestomach andintestines

Medical application
Before operation

Remove affected partMark aroundthe affected part

Metal clip

Endoscope
Clip attached

Clip for endoscope

In side of the stomach

Endoscopic surgery

Radiography system should be needed.
A laparoscopic image and a radiograph are different.
SourceCircuit
Clip

Radio wave from anelectric scalpel

Body ・Visible
・Eliminate the radiograph19equipment

Miniaturization for imprint application
LED marker without any batteries
for Endoscopic surgery
Source: electric scalpel・Electro magnetic wave circuit
・Size reduction
・Medical equipment
PAD1 C1Circuit model

C3C1D１Vin

D2C2C2

D３

D４C4LED9LED10Vout
PAD2

Test chip （2φ x 18 mm = Endoscopy）

Experiment with pig (weight =30kg)

21

LED was clipped on the Stomach anterior wall.

点灯したLED回路（H28年度 JST事業成果）
21

22

LED lightning (Inside the stomach)

Energy Harvesting Circuit with Planar Antenna
C1Dr. M. MansourVinRectifier
unit cell

8 stage x 3 cets

C2
Vout

Circuit model

Matching circuitL1=1.6 nH

L1=1.6 nH
C=0.3 pF

L2=75 nH

L2=75 nH

C=0.3 pF

L1=1.6 nH
L1=1.6 nH L1=1.6 nH
L1=1.6 nH
L2=75 nH
C=0.3 pF

23

Antenna layout

24

Metal line

Port

Circuit board
M. Mansour, K. Sultan, and H. Kanaya, IEEE AP-S 2020

Block diagram (Field test)
TX antenna
YAGI-Diploe 10.8dB
900-940 MHz

Distance=−Energy
harvester

25

Capacitor
1,000 uF
Powermanagement IC

Signal generator
Agilent E4428C

Sensor＋BLE
moduleReal time data transmission
PC,Smart phone

BLE: Bluetooth low energy26

Experimental setup

100mm

Energy Harvester
80mm

TX antenna

22dBm@920MHz（IMS band）

Measured results

27

Voltage drop by the sensing and BLE data transmission
1 hour2.5

V_capcitor (V)2300 sec
1.5
1
0.5
0
t1

t2

t3

t4

t5

t6

t7

Time (min)

t8

t10

t11

t12

t13

Measured results

28

Body surface temperature measurement

Energy harvester
Temperature sensorand BLE module

Powermanagement
ICData receiving (BLE)

SmartphoneMeasured data

30

Temperature (℃)

Body surface
temperatureRoomtemperature

0126

Put the sensor

254378Time (min)50463031
Extend the distance using RF from DTV station

Fukuoka Tower
Fukuoka Tower is one of the TV transmission towers.
500MHz to 600MHz, radiating power of 6.0kW to 7.2kW⇒ Multi band transmitter
0500

520

540

560

580

600

620

RF power(dB)
電波[dB]-10-20-30-40-50-60-70

周波数[MHz]

Frequency (MHz)Fukuoka Tower, 234m Hight.

Measurement powers around
400m from Fukuoka Tower

640

MEH measurement

RX antenna

32

Fukuoka tower

Radio wave

MEH, sensor
and BLE

Experiment at Atago Shrine (1.8km point)

Measured results
Distance fromFukuoka tower

Output open
circuit DC
voltage
5.1VTime taken for firstcommunication

10V

50 s

3.4km

9.6V

82 s

7.5km

6.0V

192 s

1.0km (withobstacles)
1.8km

33

220 s
Temp.

Time
Temperature receiving data(with obstacles)

Successful continuous
communication using radio
waves emitted from Fukuoka
Tower.
Capacitor voltage

Operable area (estimated)

34

Fukuoka tower

7.5 km
3.4 km

1.8 km

1.0 kmCOLLABORATORS
Vital sensing project:• ALSENS Inc.
• University Farm, Kyushu University• Livestock Research Division, Oita Prefectural Agriculture, Forestry and Fisheries
Research Center• Oita Prefectural Agriculture, Forestry and Fisheries Research Center• Kamiens Technology, Inc.
Implant sensing project:• Fukuoka Dental College Medical & Dental Hospital• Kyushu University Hospital• Section of Oral Rehabilitation, Kyushu University• LOGICAL PRODUCT Co.
Infrastructure sensing project:• Geodisaster Prevention Engineering Laboratory, Kyushu University• Universiti Teknologi Malaysia, Malaysia• Nahda University, Egypt• NRIAG, , Egypt35

COLLABORATORS Cont.
Wireless communication project:• KYUSHU TEN LIMITED• SEIKO ELECTRIC CO. LTD.
• Braveridge Co. Ltd.
• Logic Research Co. Ltd.
• Ericsson, France• Pohang University of Science and Technology, Korea• Sony• Hinode,Ltd• Tanaka Kikinzoku Kogyo• Nagasaki University• Research Institute of Electrical Communication, Tohoku University36