<s>
A	O
phase	B-Algorithm
shift	I-Algorithm
module	I-Algorithm
is	O
a	O
microwave	B-Application
network	I-Application
module	O
which	O
provides	O
a	O
controllable	O
phase	O
shift	O
of	O
the	O
RF	O
signal	O
.	O
</s>
<s>
Phase	B-Algorithm
shifters	I-Algorithm
are	O
used	O
in	O
phased	O
arrays	O
.	O
</s>
<s>
Active	O
phase	B-Algorithm
shifters	I-Algorithm
provide	O
gain	O
,	O
while	O
passive	O
phase	B-Algorithm
shifters	I-Algorithm
are	O
lossy	O
.	O
</s>
<s>
Analog	O
phase	B-Algorithm
shifters	I-Algorithm
provide	O
a	O
continuously	O
variable	O
phase	O
shift	O
or	O
time	O
delay	O
.	O
</s>
<s>
Digital	O
phase	B-Algorithm
shifters	I-Algorithm
provide	O
a	O
discrete	O
set	O
of	O
phase	O
shifts	O
or	O
time	O
delays	O
.	O
</s>
<s>
Digital	O
phase	B-Algorithm
shifters	I-Algorithm
require	O
parallel	O
bus	O
control	O
.	O
</s>
<s>
One-conductor	O
or	O
dielectric	O
transmission	O
line	O
(	O
optical	B-Architecture
fibre	I-Architecture
,	O
finline	O
,	O
waveguide	O
)	O
:	O
</s>
<s>
A	O
phase	B-Algorithm
shifter	I-Algorithm
provides	O
an	O
invariable	O
phase	O
shift	O
with	O
frequency	O
,	O
and	O
is	O
used	O
for	O
fixed-beam	O
frequency-invariant	O
pattern	O
synthesis	O
.	O
</s>
<s>
A	O
TTD	O
phase	B-Algorithm
shifter	I-Algorithm
provides	O
an	O
invariable	O
time	O
delay	O
with	O
frequency	O
,	O
and	O
is	O
used	O
for	O
squint-free	O
and	O
ultra	O
wideband	O
(	O
UWB	O
)	O
beam	O
steering	O
.	O
</s>
<s>
Non	O
semi-conducting	O
(	O
ferrite	O
,	O
ferro-electric	O
,	O
RF	B-Algorithm
MEMS	I-Algorithm
,	O
liquid	O
crystal	O
)	O
:	O
</s>
