Dr. Louise SenguptaDr. Louise SenguptaDr. Louise SenguptaDr. Louise SenguptaPresident & CEO

Paratek Microwave, Inc.6935N Oakland Mills RoadColumbia, MD 21045www.paratek.com

The Tunable Wireless Company

• We build tunable filters and electronically scanning antennas for wireless networks.

• Our electronically tunable RF (ETRF TM ) products increase capacity and data rates, while reducing system deployment costs.

Parascan™ Technology

Patented tunable dielectric materials are thecornerstone of our technology.

Materials can be fabricated for bulk, thick film andthin film components.

Continual pursuit of new compositions for component development.

Tunable FiltersElectronically Steerable

Tracking Antennas

•Beam Tilt (PCS) Antennas•Tunable Delay Lines for Power Amplifiers•Advanced Military Radar

•Multifrequency Radios(33 MHz-40 GHz)

•Steerable LMDS Hub Antennas•Satellite Tracking Antennas

•Mobile Satellite•Mobile Subscriber

Phase Shifters

Product Family and Applications

Measured Loss Tangent of a PARASCANTM Composite

Freq (MHz) Loss Tangent1 0.00024

542 0.00096700.7 0.0014843.4 0.00143925 0.001345

1001 0.00149

0

0.0002

0.0004

0.0006

0.0008

0.001

0.0012

0.0014

0.0016

0 100 200 300 400 500 600 700 800 900 1000 1100

Frequency (MHz)

Loss

Tan

gent

of A

E-9

Courtney Resonator, NIST

Open Resonator, Rome Labs

Dielectric Sleeve Resonator, NIST

LCR Meter, Paratek

A linear relationshipis implied between

loss tangent andfrequency.

Tunability of a PARASCANTM CompositeDoubly-Reentrant Biased VHF/UHF Cavity

%100x:,

/2,,

unbiasedr

mVatbiasedrunbiasedrTTunabilityε

εε µ−=

Bias Field Tunability (%)(V/um) 10 KHz Tunability VHF Tunability

0 0 00.4 1.340.8 3.59 6.851.2 7.171.6 11.21 8.572 14.35

2.4 17.93 14.662.8 19.733.2 21.97 20.3853.6 23.774 27.53 25.764

0

5

10

15

20

25

30

0 1 2 3 4 5Electric Field (V/mm)

AE

-9 T

unab

ility

(%)

10 KHz TunabilityVHF Tunability

(40 MHz)(10 KHz)

TUNABILITY DOES NOT VARY WITH FREQUENCY

Tunability of a PARASCANTM Composite at High Field Strengths

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

0 1 2 3 4 5 6 7 8 9 10 11 12

Bias E Field (V/um)

Nor

mal

ized

Perm

ittiv

ity(εε εε

r/εε εεro

)

AE-9

Linear Approx. er/ero=-.0474E+1.0266

Note 1: Unbiased relative permittivity, εro, is 291.

Bias Field εr/εro0 1.00000.5 0.99841 0.98731.5 0.96672 0.93972.5 0.91273 0.88573.5 0.86034 0.83494.5 0.81435 0.79055.5 0.76836 0.74606.5 0.72067 0.70167.5 0.67308 0.64298.5 0.6063

TUNABILITYIS LINEAR

Material FOM FOMCode (10GHz) (24GHz)

Y0 1.822 4.229X30 1.501 3.622Y111 3.47Y115 4.034Y122 3.126Y121 3.543Y120 1.549 3.407Y53 2.53 3.45Y126 3.573Y130 3.3Y131 3.472Y132 2.825Y129 3.43Y108 2.549 3.34Y85 2.95

W106 2.686

Figure of Merit (FOM) for ParascanTM Compositesat 10 GHz and 24 GHz

PARASCANTM Varactors Show Fast Switching Speed ~ 30 ns

30 ns

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100Pin(dBm)

Pout

(dBm

)

IP3=74dBm

IP3 Values of Paratek’s ETRF Components are Significant for High Power Applications

72

73

74

75

76

77

78

79

80

81

0 100 200 300 400 500 600 700 800 900 1000

Bias Voltage (VDC)

IP3 (d

Bm)

IP3 vs. Bias Voltage

IP3 vs. Frequency

60

65

70

75

80

1730 1740 1750 1760 1770 1780

Frequency (MHZ)

IP3 (d

Bm)

High Q, High Tunability PARASCANTM Varactors- Q~200-500

MATERIAL FREQUENCY DIELECTRICCONSTANT

LOSSTANGENT

CBias/ C0 AppliedElectricField

1 1.5 GHz 980 0.0025 1.875 15 V/µm

2 1.5 GHz

3.0 GHz

825

780

0.0025

0.005

1.8-2.0 10-12V/µm

3 1.5 GHz 650 0.0022 1.8-2.2 10-15V/µm

4 1.5 GHz 425 0.0020 1.6 10 V/µm

5 1.5 GHz 250 0.0018 1.8 17 V/µm

0.5 mm

1.5 mm0.9 mm

l g electrode

substrate

FE film

PARASCANTM VaractorsVaractor Measurement

High Q, High Tunability PARASCANTM Varactors

Straight GapVaractors

High Q (~100-200)Varactors at 10 GHz

Tan δδδδ====(zero bias) = 0.010

55.20 New Composite(1200 C), 20 Micron Gap

0.3

0.35

0.4

0.45

0.5

0 200 400 600Voltage (V)

Cap

acita

nce

(pF)

60.20 10 Micron Gap(40 V/Micron Field)

0.6

0.8

1

1.2

0 100 200 300 400

Voltage (V)

Cap

acita

nce

(pF)

Tan δδδδ (zero bias) = 0.014

10 GHz VaractorData

MATERIAL DIELECTRICCONSTANT

LOSSTANGENT

TUNABILITY(%) (40 V)

Gap(µm)

FingerLength(µm)

1 118 0.0156 26 8 802 291 0.0149 12.2 10 803 704 0.0103 13.9 10 804 527 0.0120 23.7 6 805 423 (5 GHz)

3950.009 (5 GHz)0.013

31.6 (5 GHz) 6 (5 GHz) 80 (5 GHz)

PARASCANTM Interdigitated (IDE) Varactors have high Q ~65-98at 10 GHz

TUNING VOLTAGE = 40 VOLTS !

0.5 mm

1.5 mm0.9 mm

l g electrode

substrate

FE film

High Q, High Tunability PARASCANTM Varactors at Ka-Band

Q~ 50-125

13.2% tuning at 40V

3435363738394041

0 0.5 1 1.5 2

Volts per Micron

Cap

acita

nce

THICK FILM VERTICAL CAPACITORSWITH REDUCED VOLTAGES

Dielectric constant 60.1Tunability 10V/um 6.4%, 50V/um 19.8%, 100V/um 36.7%,

0

10

20

30

40

0 10 20 30 40 50 60 70 80 90 100 110 120 130

Applied Voltage (V/um)

Cp(

pf)

THIN FILM DEVELOPMENT: REDUCTION OF VOLTAGES

Thin Film Performance

Film Composition

Substrate Q (8 GHz)

% Tuning E (V/mm)

1 alumina 112 28.3 232 MgO 104 37.2 322 MgO 120 12.1 232 alumina 62 26 232 alumina 67 14 303 MgO 135 10.5 273 MgO 336 5 273 alumina 209 20.5 273 alumina 155 6.4 25

11.00%

12.00%

13.00%

14.00%

20 120 220 320 420 520 620 720 820 920

Cycle #

Tuna

bilit

y% f

rom

1V/

mic

ron

to 4

V/m

icro

n

(cycling from 1V/micron to 4V/micron)

Tunability of a typical ParascanTM

composite for 1000 Cycles

HF TUNABLE FILTER

SPECIFICATIONSTuning Range: 55.7 to 62.4 MHz3-dB Bandwidth: 5% (2.7 MHz) Number of Poles: 3Insertion Loss: 3.2 dBReturn Loss: ≥ 17 dBPower Handling: ≥ 30 dBm (1 W)IP3: ≥ 50 dBControl : 0-12 V Analog or TTL

FEATURES• Low insertion loss• High power handling• Fast tuning: ~ ms• Dielectric varactor• Low DC power consumption• High IP3• Compact size • Light weight• Low cost

Frequency (MHz)

55 60 65

dB

-30

-20

-10

0V1, 0V V12, 700V

S21

98 to 110 MHz TUNABLE FILTERSPECIFICATIONSTuning Range: 100 to 110 MHz1-dB Bandwidth: 1.4 % Number of Poles: 2Insertion Loss: 4.5 dBReturn Loss: ≥ 17 dBPower Handling: ≥ 30 dBm (1 W)IP3: ≥ 50 dB

FEATURES•High power handling• Fast tuning: ~ ms• Dielectric varactor• Low DC power consumption• High IP3• Compact size • Light weight• Low cost

0 V bias Maximum Bias

2-pole Combline Tunable Filter

-40

-30

-20

-10

0

1.8 1.9 2 2.1 2.2

Frequency (GHz)

Loss

(dB

)

C=1.51pF

S11

S21

C=1.315pF C=1.14pF

43

600

4

100

3030

100

40043 18 43 108 431843

400

1116

907

400

Via

100

300

200

630

Layout of 2-pole Tunable IF Filter

Tuning simulation

IF (L/S-Band) Tunable Filters

L-Band Phase Shifter

• General Specifications– Model Number: PP40001– RF Power Handling (typical): 1 W– Switching Speed (nominal): ~ us– Interface: SMA or surface mount– Control: Analog 0-12 VDC, or TTL– Operating Temperature: -30 to +70 C – Size (nominal): 1.75 x 1.75 x 0.5 inches

• Electrical Specifications– Frequency Tuning Range: 1.7 to 2.1 GHz– Phase Shift: 0- 90 degrees– Insertion Loss: 1 dB (max)– Return Loss: 18 dB (min)

Phase shift (deg) vs Voltage of rat-race L-band phase shifter (2-1-00)

0

20

40

60

80

100

0 50 100 150 200 250 300

Voltage (V)

Phas

e Shif

t (de

g)

Measured at 1.78 GHz

S11 vs. Freq. and Voltage

-25

-20

-15

-10

1.6 1.7 1.8 1.9

Frequency (GHz)

S11

(dB

)

V=300V

V=0Vstep 50V

S21 vs. Freq. and Voltage

-2

-1.5

-1

-0.5

0

1.6 1.7 1.8 1.9

Frequency (GHz)

S21

(dB

)

V=0V

V=300V

step 50V

L-Band Phase Shifter Data

SPECIFICATIONSFrequency Range: 8-12 GHz (Waveguide)Phase Shift: 0 to 360 degreesMaximum Insertion Loss: < 1.7 dBReturn Loss: > 18 dBError of Phase Shift: < 3 degreesPower Handling: > 30 dBmBias Field: 0 to 200 V/mil (DC)DC Leakage Current: < 1 mA

0

90

180

270

360

0 50 100 150 200DC BIAS (V/MIL)…..

12 GHz11 GHz10 GHz9 GHz8 GHz

X-BAND WAVEGUIDE PHASE SHIFTER

0.00.10.20.30.40.50.60.70.80.91.0

8 9 10 11 12Frequency (GHz) X30-

Transmission

Reflection

At 10 GHz, Ferroelectric Loss - 1.7 dB

SWR=2

At 10 GHz, Parascan Loss ~1.7 dB

0.00.10.20.30.40.50.60.70.80.91.0

8 9 10 11 12Frequency (GHz) X30-

Transmission

Reflection

At 10 GHz, Ferroelectric Loss - 1.7 dB

SWR=2

At 10 GHz, Parascan Loss ~1.7 dB

Ka Band Tunable Filter

• General Specifications– Model Number: PF70001– RF Power Handling (typical): 1 W– Switching Speed (nominal): ~ us– Interface: WR-42 waveguide, square flange– Control: Analog 0-12 VDC, or TTL – Operating Temperature: -30 to +70 C – Size: 0.75 x 1 x 1 inches

• Electrical Specifications– Frequency Tuning Range: 21.5 to 22.2 GHz– Instantaneous Bandwidth: 550 MHz– Rejection: 40 dB at 1400 MHz from center– Insertion Loss: 1.5-2.0 dB – Return Loss: 15-18 dB

-40.0

-30.0

-20.0

-10.0

0.0

19.00 20.00 21.00 22.00 23.00 24.00

Frequency (GHz)

Ref

lect

ion

& T

rans

miss

ion

(dB

)

S11( 0V)S12( 0V)S11(300V)S12(300V)

Measured Performance of 2-pole Electronically Tunable K Band Finline Filter

Measured Frequency Response of K Band 3-pole Finline Filter

-80

-70

-60

-50

-40

-30

-20

-10

0

20 21 22 23 24 25 26Frequency (GHz)

Ref

lect

ion

& T

rans

mis

sion

(dB

)

S11S12

Phased Array Antenna SystemMain Beam Direction

Radiating Elements

PhaseShifterDriver

Power Combiner/Divider(Feeding System)

Low NoiseAmplifier

High PowerAmplifier

Down Converter Demodulator

ModulatorUpConverter

TrackingSoftware

BeamController

Tracking and Control

Communications Terminal

Phased Array Antenna System------ Key Components using Key Technology

1. Phase Shiftersa) Co-Planar Line Phase Shiftersb) Microstrip Line Phase Shiftersc) Reflect Type Phase Shiftersd) Finline Phase Shifters2. Power Combiner/Dividera) Primary Feeding Horn b) Radial Line Waveguidec) Plane Wave Feeding System

Reflect TypeMulti-layerLens Type

Finline Phase Shifter #2

-120

0

120

240

360

480

0 100 200 300 400

Voltage (V)

Ph

ase S

hif

t (d

eg

ree)

Tested at 30 GHz

Finline Device DataFinline phase shifter #2

0

2

4

6

8

10

12

0 50 100 150 200 250 300 350 400

Voltage (V)

Insert

ion

Lo

ss (

dB

)

Tested at 30 GHz

Insertion loss variation: 3dB/360deg

Coplanar Waveguide Transmission Line Phase Shifter

12.6mm

Floating (capacitivly coupled) RF ground

microstrip CPW

CoplanarPhase-shift vs. Bias Voltage

CoplanarPhase Shifter Insertion Loss

Microstrip Phase-shift vs. Bias Voltage

MicrostripPhase Shifter Insertion Loss

1D Scanning Antenna

• 16 × 16 stacked patch array, consisting of 16 center-series fed linear arrays• V-polarized• 27.5GHz to 28.5 GHz band• Electronically steerable in azimuth ±45° from boresight• Cosecant square shaped beam in elevation, with low upper sidelobes• F/B ratio >30dB • Gain: >22dBi• Max power 10W• VSWR 1.5 : 1• Size : 10 × 12.4cm

1D Scanning Antenna

30 40 50 60 70 80 90 100 110 120 130 140 15040

35

30

25

20

15

10

5

0.

Elevation angle from zenith

Amplitude [dBi]

1D Scanning Antenna Elevation Pattern

Radiating Elements PARATEK Phase Shifters

Connector

Beam Control Lines

Radial LineWaveguide Coupling slots

Or Probes

Beam ControlLines

PARATEK Material Substrate

2D Phased Array Antenna

Antenna Test – Near Field• NSI 3’X 3’ planar near

field range– Complete automation

for production level testing

– All software required for far-field transformation is included with system

– Ability to test antennas in K and Ka Band with easy adaptability for other frequency bands

Antenna Test – Probe Testing• Probe Station and

Universal Test Fixture allows the characterization of coplanar and microstrip components such as phase shifters which may be used in antenna construction

• These tools combined with a vector network analyzer provide electrical performance data essential to the overall performance of the antenna

Sample placed here

RF connectors to network analyzer

RF connectors to network analyzer

Universal Test Fixture Sketch

Antenna Test – G/T Testing• G/T Test configuration allows accurate testing of the system gain over

noise performance of the antenna• Test system is compact and mobile allowing antenna to be tested

outside pointed to the sky• G/T measurement components have been purchased and are awaiting

delivery for initial assembly and checkout

Low Voltage Power SupplyRF cable 6’

Manual Variable Attenuator/s

Amplifier

Spectrum Analyzer

PowerSensor

RF Power Meter

RF cable 3’ RF cable 3’AUT

WG/Coax

WG/Coax

Waveguide Termination

WGSwitch

G/T Measurement Configuration

SummaryParascanTM Materials offer:• Voltage Linearity• Power Handling Capability• Low Loss• High Tunability• Fast Switching Speeds• Multiple Processing Solutions

ParascanTM Components deliver:• Fast Tuning• Low Power Consumption• Choice of Planar and Waveguide• Low Insertion Loss• Power Handling CapabilityParascanTM Antennas offer:• Electronic scanning at a low cost with

high performance

Paratek Microwave, Inc.6935N Oakland Mills RoadColumbia, MD 21045www.paratek.com

…Stay Tuned!…Stay Tuned!…Stay Tuned!…Stay Tuned!