UNIVERSITY
OF TRENTO
DIPARTIMENTO DI INGEGNERIA E SCIENZA DELL’INFORMAZIONE
38050 Povo – Trento (Italy), Via Sommarive 14
http://www.disi.unitn.it
S
TUDIO
P
RELIMINARE
S
INTESI
S
ISTEMI
R
ADIANTI PER
RBS
–
P
ROGETTAZIONE DI
A
RRAY
T
RI
B
AND E SIMULAZIONE PIANO DI MASSA
INFINITO
A. Massa, and ElediaLab
November 2008
Information andCommuni ation Te hnologyDept.
UniversityofTrento
ViaSommarive14,38050Trento, ITALY
Phone+390461882057Fax+390461882093
E-mail: andrea.massaing.unitn.it
DIT-PRJ-08-037
Studio Preliminare Sintesi Sistemi Radianti per RBS
Report N. 02-05
Progettazione di array Tri Band e simulazione piano di
massa in nito
Authors ELEDIA Group
Version 2.0
Do umentState Final
A ess Con dential
Date November10,2008(10-11-08)
1 Simulazione di array ideale nonequispaziato on elementiidealiper RBS 2
2 Test ase 3
2.1 Test ase1 . . . 3
2.2 Test ase2 . . . 6
2.3 Test ase3 . . . 9
1 Simulazione di array ideale non equispaziato on elementi ideali per RBS
Inquestafasediprogettosisono onsiderateleseguentiipotesi
elementiradiantiideali
utilizzodi 12elementiradianti
utilizzodi unpianodimassain nito
utilizzo dei pesi e posizioni ottime dedotte nel asoideale ( ioè on elementi puntiformi ideali, in assenzadi mutual
ouplingedi pianodi massa), onsiderando omeantennadiriferimento laKATHREIN742264
onfronto onleprestazionidellaKATHREIN742264edi un'antennaTRIBAND di dimensioni maggiori,laKA
TH-REIN742270.
Sonoriportati,pertuttii asidiinteresse:
lunghezzadell'array(distanzatrai entrideglielementiradianti)
L
in metri diagrammadiradiazioneP(θ)
de nito omeP
(θ) =
X
m
w
m
exp
j
2πd
m
cos(θ)
λ
halfpowerbeamwidth (HPBW)ingradinel asoidealeenellesimulazioni onilpianodimassa
posizionedelprimo nullo neldiagrammadiradiazione
θ
n
sidelobelevel(SLL)in dBnel asoideale enellesimulazioni onilpianodimassa
guadagnoGindBinel asoidealeenellesimulazioni onilpianodimassa
tapere ien y
ǫ
T
de nito omeǫ
T
=
|P a
n
|
2
N
P |a
n
|
2
2.1 Test ase 1 Obiettivi: SLL ELEDIA
≈
SLL KATHREIN L ELEDIA <<L KATHREIN HPBW ELEDIA≈
HPBW KATHREIN Risultati:Kathrein Kathrein ELEDIA ELEDIA ELEDIA ELEDIA
Parametro 742264 742270 IDEAL groundplane groundplane groundplane
d
= 0.0357142
d
= 0.04166
d
= 0.08333
(λ
4
2.1GHz) (λ
4
1.8 GHz) (λ
4
0.9GHz)L
[m℄ 1.316 1.498 1.0448 = = = HPBW900MHz[deg℄ 14.5 13 15.8 = = = HPBW1800MHz[deg℄ 7.2 6.7 7.9 = = = HPBW2100MHz[deg℄ 6.2 6.4 = = =θ
n
900MHz[deg℄ unknown unknown 19.1 = = =θ
n
1800MHz[deg℄ unknown unknown 10 = = =θ
n
2100MHz[deg℄ unknown unknown 7.5 = = =SLL900MHz[dB℄ 14 17 16 = = = SLL1800MHz[dB℄ 16 18 16 = = = SLL2100MHz[dB℄ 18 16 = = =
G
900MHz[dBi℄ 14 15 9.85 12.918 12.940 13.09G
1800MHz[dBi℄ 17 16.5 12.37 15.62 15.68 15.73G
2100MHz[dBi℄ 17.2 13.19 16.59 16.67 16.625ǫ
T
900MHz unknown unknown 0.9499 = = =ǫ
T
1800MHz unknown unknown 0.9327 = = =ǫ
T
2100MHz unknown unknown 0.7143 = = =-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 1. TestCase1: diagrammadi radiazionea900MHzin assenzadelpianodimassa eperdiversedistanzedel pianodi
massa.
-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 2. TestCase1: diagrammadiradiazionea1800MHzinassenzadelpianodimassaeperdiversedistanzedelpianodi
-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 3. TestCase1: diagrammadiradiazionea2100MHzinassenzadelpianodimassaeperdiversedistanzedelpianodi
Obiettivi: SLL ELEDIA <SLL KATHREIN L ELEDIA <<L KATHREIN HPBW ELEDIA
≈
HPBW KATHREIN Risultati:Kathrein Kathrein ELEDIA ELEDIA ELEDIA ELEDIA
Parametro 742264 742270 IDEAL groundplane groundplane groundplane
d
= 0.0357142
d
= 0.04166
d
= 0.08333
(λ
4
2.1GHz) (λ
4
1.8 GHz) (λ
4
0.9GHz)L
[m℄ 1.316 1.498 1.088 = = = HPBW900MHz[deg℄ 14.5 13 15.9 = = = HPBW1800MHz[deg℄ 7.2 6.7 7.5 = = = HPBW2100MHz[deg℄ 6.2 6.6 = = =θ
n
900MHz[deg℄ unknown unknown 19 = = =θ
n
1800MHz[deg℄ unknown unknown 9.5 = = =θ
n
2100MHz[deg℄ unknown unknown 8.5 = = =SLL900MHz[dB℄ 14 17 18 = = = SLL1800MHz[dB℄ 16 18 20 = = = SLL2100MHz[dB℄ 18 20 = = =
G
900MHz[dBi℄ 14 15 10.19 13.24 13.25 13.37G
1800MHz[dBi℄ 17 16.5 13.17 16.26 16.28 16.34G
2100MHz[dBi℄ 17.2 13.56 16.79 16.82 16.76ǫ
T
900MHz unknown unknown 0.937 = = =ǫ
T
1800MHz unknown unknown 0.701 = = =ǫ
T
2100MHz unknown unknown 0.810 = = =-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 4. TestCase2: diagrammadi radiazionea900MHzin assenzadelpianodimassa eperdiversedistanzedel pianodi
massa.
-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 5. TestCase2: diagrammadiradiazionea1800MHzinassenzadelpianodimassaeperdiversedistanzedelpianodi
-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 6. TestCase2: diagrammadiradiazionea2100MHzinassenzadelpianodimassaeperdiversedistanzedelpianodi
Obiettivi: SLL ELEDIA <<SLL KATHREIN L ELEDIA <<L KATHREIN nessunvin olosuHPBW Risultati:
Kathrein Kathrein ELEDIA ELEDIA ELEDIA ELEDIA
Parametro 742264 742270 IDEAL groundplane groundplane groundplane
d
= 0.0357142
d
= 0.04166
d
= 0.08333
(λ
4
2.1GHz) (λ
4
1.8 GHz) (λ
4
0.9GHz)L
[m℄ 1.316 1.498 0.955 = = = HPBW900MHz[deg℄ 14.5 13 15.1 = = = HPBW1800MHz[deg℄ 7.2 6.7 9.5 = = = HPBW2100MHz[deg℄ 6.2 8 = = =θ
n
900MHz[deg℄ unknown unknown 18.5 = = =θ
n
1800MHz[deg℄ unknown unknown 11.5 = = =θ
n
2100MHz[deg℄ unknown unknown 10.5 = = =SLL900MHz[dB℄ 14 17 20 = = = SLL1800MHz[dB℄ 16 18 22 = = = SLL2100MHz[dB℄ 18 24 = = =
G
900MHz[dBi℄ 14 15 10.41 13.43 13.44 13.51G
1800MHz[dBi℄ 17 16.5 12.49 15.58 15.60 15.61G
2100MHz[dBi℄ 17.2 13.16 16.23 16.24 16.22ǫ
T
900MHz unknown unknown 8·
10−
3
= = =ǫ
T
1800MHz unknown unknown 0.8251 = = =ǫ
T
2100MHz unknown unknown 0.6226 = = =-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 7. TestCase3: diagrammadi radiazionea900MHzin assenzadelpianodimassa eperdiversedistanzedel pianodi
massa.
-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 8. TestCase3: diagrammadiradiazionea1800MHzinassenzadelpianodimassaeperdiversedistanzedelpianodi
-40
-35
-30
-25
-20
-15
-10
-5
0
0
-10
-20
-30
-40
-30
-20
-10
0
dB
θ
= 0
θ
= 30
θ
= 60
θ
= 90
θ
= 120
θ
= 150
θ
= 180
P(
θ
), no groundplane
P(
θ
), d=
λ
/4 at 2100 MHz
P(
θ
), d=
λ
/4 at 1800 MHz
P(
θ
), d=
λ
/4 at 900 MHz
P(
θ
), Kathrein Data
Fig. 9. TestCase3: diagrammadiradiazionea2100MHzinassenzadelpianodimassaeperdiversedistanzedelpianodi
