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gammaout

Output reflection coefficient of 2-port network

Syntax

coefficient = gammaout(s_params,z0,zs)
coefficient = gammaout(hs,zs)

Description

coefficient = gammaout(s_params,z0,zs) calculates the output reflection coefficient of a 2-port network.

s_params is a complex 2-by-2-by-M array, representing M 2-port S-parameters. z0 is the reference impedance Z0; its default is 50 ohms. zs is the source impedance Zs; its default is also 50 ohms. coefficient is an M-element complex vector.

coefficient = gammaout(hs,zs) calculates the output reflection coefficient of the 2-port network represented by the S-parameter object hs.

Examples

collapse all

Calculate the output reflection coefficient using network data from a file.

ckt = read(rfckt.amplifier,'default.s2p');
s_params = ckt.NetworkData.Data;
z0 = ckt.NetworkData.Z0;
zs = 100;
coefficient = gammaout(s_params,z0,zs)
coefficient =

  -0.0741 - 0.3216i
  -0.0765 - 0.3184i
  -0.0787 - 0.3152i
  -0.0809 - 0.3121i
  -0.0829 - 0.3090i
  -0.0848 - 0.3059i
  -0.0867 - 0.3029i
  -0.0884 - 0.3000i
  -0.0900 - 0.2971i
  -0.0915 - 0.2943i
  -0.0930 - 0.2915i
  -0.0943 - 0.2888i
  -0.0955 - 0.2862i
  -0.0966 - 0.2836i
  -0.0976 - 0.2811i
  -0.0986 - 0.2786i
  -0.0995 - 0.2761i
  -0.1003 - 0.2736i
  -0.1010 - 0.2712i
  -0.1018 - 0.2687i
  -0.1025 - 0.2662i
  -0.1031 - 0.2637i
  -0.1037 - 0.2611i
  -0.1042 - 0.2585i
  -0.1046 - 0.2559i
  -0.1050 - 0.2533i
  -0.1053 - 0.2508i
  -0.1056 - 0.2484i
  -0.1059 - 0.2462i
  -0.1063 - 0.2441i
  -0.1066 - 0.2422i
  -0.1070 - 0.2406i
  -0.1074 - 0.2390i
  -0.1078 - 0.2376i
  -0.1082 - 0.2363i
  -0.1087 - 0.2350i
  -0.1091 - 0.2338i
  -0.1094 - 0.2326i
  -0.1098 - 0.2314i
  -0.1101 - 0.2302i
  -0.1103 - 0.2290i
  -0.1104 - 0.2277i
  -0.1105 - 0.2264i
  -0.1105 - 0.2250i
  -0.1105 - 0.2236i
  -0.1104 - 0.2223i
  -0.1104 - 0.2211i
  -0.1103 - 0.2199i
  -0.1102 - 0.2189i
  -0.1102 - 0.2181i
  -0.1102 - 0.2174i
  -0.1103 - 0.2169i
  -0.1103 - 0.2165i
  -0.1104 - 0.2162i
  -0.1104 - 0.2159i
  -0.1106 - 0.2158i
  -0.1107 - 0.2157i
  -0.1109 - 0.2157i
  -0.1111 - 0.2159i
  -0.1114 - 0.2161i
  -0.1117 - 0.2165i
  -0.1121 - 0.2171i
  -0.1124 - 0.2177i
  -0.1128 - 0.2184i
  -0.1132 - 0.2192i
  -0.1136 - 0.2201i
  -0.1140 - 0.2210i
  -0.1145 - 0.2221i
  -0.1150 - 0.2233i
  -0.1154 - 0.2246i
  -0.1159 - 0.2260i
  -0.1164 - 0.2277i
  -0.1169 - 0.2301i
  -0.1174 - 0.2329i
  -0.1180 - 0.2362i
  -0.1187 - 0.2399i
  -0.1195 - 0.2440i
  -0.1205 - 0.2483i
  -0.1218 - 0.2529i
  -0.1234 - 0.2576i
  -0.1253 - 0.2624i
  -0.1277 - 0.2674i
  -0.1303 - 0.2728i
  -0.1333 - 0.2786i
  -0.1368 - 0.2847i
  -0.1410 - 0.2910i
  -0.1457 - 0.2975i
  -0.1513 - 0.3042i
  -0.1576 - 0.3110i
  -0.1649 - 0.3180i
  -0.1731 - 0.3251i
  -0.1818 - 0.3345i
  -0.1907 - 0.3477i
  -0.2003 - 0.3637i
  -0.2111 - 0.3815i
  -0.2235 - 0.4002i
  -0.2383 - 0.4187i
  -0.2564 - 0.4359i
  -0.2787 - 0.4505i
  -0.3065 - 0.4612i
  -0.3410 - 0.4661i
  -0.3842 - 0.4689i
  -0.4369 - 0.4728i
  -0.4979 - 0.4755i
  -0.5659 - 0.4740i
  -0.6389 - 0.4649i
  -0.7143 - 0.4441i
  -0.7883 - 0.4075i
  -0.8555 - 0.3507i
  -0.9091 - 0.2705i
  -0.9407 - 0.1656i
  -0.9419 - 0.0539i
  -0.9154 + 0.0443i
  -0.8692 + 0.1267i
  -0.8105 + 0.1933i
  -0.7454 + 0.2458i
  -0.6788 + 0.2865i
  -0.6143 + 0.3179i
  -0.5545 + 0.3424i
  -0.5011 + 0.3621i
  -0.4554 + 0.3789i
  -0.4163 + 0.3895i
  -0.3813 + 0.3912i
  -0.3499 + 0.3861i
  -0.3218 + 0.3758i
  -0.2964 + 0.3622i
  -0.2734 + 0.3466i
  -0.2526 + 0.3305i
  -0.2338 + 0.3153i
  -0.2169 + 0.3023i
  -0.2019 + 0.2929i
  -0.1889 + 0.2854i
  -0.1778 + 0.2774i
  -0.1682 + 0.2693i
  -0.1599 + 0.2610i
  -0.1526 + 0.2528i
  -0.1461 + 0.2449i
  -0.1403 + 0.2374i
  -0.1348 + 0.2304i
  -0.1296 + 0.2243i
  -0.1243 + 0.2191i
  -0.1193 + 0.2145i
  -0.1145 + 0.2102i
  -0.1101 + 0.2062i
  -0.1060 + 0.2023i
  -0.1022 + 0.1986i
  -0.0986 + 0.1950i
  -0.0953 + 0.1915i
  -0.0922 + 0.1881i
  -0.0893 + 0.1848i
  -0.0865 + 0.1815i
  -0.0839 + 0.1781i
  -0.0814 + 0.1748i
  -0.0792 + 0.1715i
  -0.0771 + 0.1683i
  -0.0751 + 0.1651i
  -0.0731 + 0.1621i
  -0.0712 + 0.1593i
  -0.0693 + 0.1566i
  -0.0675 + 0.1542i
  -0.0656 + 0.1521i
  -0.0637 + 0.1502i
  -0.0619 + 0.1484i
  -0.0602 + 0.1469i
  -0.0586 + 0.1454i
  -0.0570 + 0.1441i
  -0.0554 + 0.1428i
  -0.0538 + 0.1415i
  -0.0523 + 0.1402i
  -0.0508 + 0.1388i
  -0.0493 + 0.1373i
  -0.0477 + 0.1357i
  -0.0461 + 0.1340i
  -0.0446 + 0.1323i
  -0.0430 + 0.1305i
  -0.0415 + 0.1288i
  -0.0400 + 0.1271i
  -0.0386 + 0.1254i
  -0.0372 + 0.1239i
  -0.0359 + 0.1225i
  -0.0346 + 0.1213i
  -0.0334 + 0.1203i
  -0.0322 + 0.1192i
  -0.0311 + 0.1183i
  -0.0300 + 0.1174i
  -0.0289 + 0.1167i
  -0.0278 + 0.1160i
  -0.0268 + 0.1153i
  -0.0258 + 0.1148i
  -0.0249 + 0.1143i
  -0.0240 + 0.1140i

Algorithms

The function calculates coefficient using the equation

Γout=S22+S12S21ΓS1S11ΓS

where

ΓS=ZsZ0Zs+Z0

Introduced before R2006a

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