Metodi projektovanja monolitnih mikrotalasnih integrisanih kola predviđenih za rad sa signalima učestanosti oko 60 GHz
Design of monolithic microwave integrated circuits for 60 GHz band
Author
Grujić, Dušan
Mentor
Saranovac, Lazar
Committee members
Đorđević, AntonijeVidenović-Mišić, Mirjana

Popović-Božović, Jelena

Ilić, Milan

Metadata
Show full item recordAbstract
Potreba za bežicnim komunikacioniom linkovima velikih brzina prenosa podataka
je podstaknuta ekspanzijom prenosivih uređaja i multimedijalnih servisa, uz
pogodnost da priroda korišcenja dozvoljava a ponekad i zahteva ogranicen domet.
Problem kapaciteta komunikacionih linkova i sve veceg broja korisnika se može rešiti
prelaskom u opseg ucestanosti od 30 do 300 GHz, koji se naziva i milimetarski opseg.
Visoka radna ucestanost pruža mogucnost korišcenja kanala velikog kapaciteta, kao
i fizicki malih antenskih nizova za fokusiranje i prostornu lokalizaciju prijemnog i
predajnog snopa. Milimetarski opseg nalazi primene i u ostalim oblastima, kao što
su industrijske, medicinske i bezbednosne. U komercijalnim primenama od interesa
je opseg ucestanosti oko 60 GHz, koji je dodeljen za nelicenciranu upotrebu širom
sveta.
Razvoj CMOS i BiCMOS tehnologija je omogucio da se sistemi u 60 GHz-om
opsegu mogu integrisati u standardnim procesima. Pored viših radnih ucestanosti,
skaliranje tehnologija uv...odi i tehnološka ogranicenja koja degradiraju performanse
ukoliko se njihov uticaj zanemari. Zanemareni efekti mogu doprineti vecim gubicima,
koji povecavaju faktor šuma prijemnika i degradiraju efikasnost predajnika,
ali i parazitnim preslušavanjima koja rezultuju neželjenim spektralnim komponentama.
Stoga je potrebno razmotriti kvalitativne i kvantitativne pokazatelje uticaja
tehnoloških ogranicenja na performanse i prilagoditi postupak projektovanja.
Kriticni blokovi za domet primopredajnika su malošumni pojacavac na prijemnoj
strani i pojacavac snage na predajnoj strani. U okviru teze predstavljen je postupak
projektovanja malošumnog pojacavaca i pojacavaca snage za rad u 60 GHz-om opsegu
i širokopojasnog delitelja ucestanosti. Uvedene su nove smernice projektovanja
koje uzimaju u obzir tehnološka ogranicenja. Pokazano je da se pravilnim particionisanjem
elektromagnetskog modela može postici dobro slaganje rezultata simulacije
i merenja. Projektovana kola su fabrikovana u IHP Microelectronics korišcenjem
0.25 mm SiGe:C BiCMOS procesa (fT/fmax = 200 GHz). Parametri fabrikovanih
kola su izmereni i verifikovani na stopicama cipa, upotrebom mikrotalasnih sondi...
The need for high capacity wireless data links is driven by expansion of mobile
devices and multimedia services, with the advantage that a typical use case allows,
and sometimes demands, a limited range. Problems of limited communication link
capacity and growing number of users can be solved by moving to frequency range
of 30 - 300 GHz, also known as millimeter range. High operating frequency allows
the use of high capacity channels, and physically small antenna arrays for beam
steering and spatial localization. Millimeter region of spectrum is also suitable for
industrial, scientific and security applications. Unlicensed 60 GHz band is available
worldwide, and is attractive for commercial applications.
Development of CMOS and BiCMOS technologies has enabled the integration
of complete 60 GHz systems in standard processes. Technology scaling enables the
use of higher operating frequencies, but imposes new design constraints which may
degrade the performance if their effect is neglecte...d. Neglected effects may contribute
to higher losses, which increase the noise figure of receiver and degrade transmitter
efficiency, and also to parasitic coupling which results in undesired spectral components.
Therefore, qualitative and quantitative measure of technology constraints
impact on performance degradation needs to be evaluated, and applied to circuit
design process.
Critical blocks for transceiver range are low noise amplifier on receiver, and power
amplifier on transmitter side. Design procedures for 60 GHz low noise and
power amplifiers, and wideband frequency divider are presented in this thesis. Guidelines
for technology constraints aware design are used in the presented design
flow. Good agreement of experimental and simulation results is achieved by proper
electromagnetic model partitioning. Designed circuits have been fabricated in IHP
Microelectronics 0.25 mm SiGe:C BiCMOS process (fT/fmax = 200 GHz). Test chip
parameters have been measured and verified on-wafer by using microwave probes...