Homework Answers
6. Design two single-stub matching networks as shown below. Transform the load impedance Z (60 j45) Ω to match an input impedance of Z,-(75+j90)Ω. Assume that both the stub and the transmission line...
6. Design two single-stub matching networks as shown below. Transform the load impedance Z (60 j45) Ω to match an input impedance of Z,-(75+j90)Ω. Assume that both the stub and the transmission line shown below have a characteristic impedance of Zo-50 Ω. Zot I ZoL.l ZL lm in Open or -) : short circuit , open or short circuit
6. Design two single-stub matching networks as shown below. Transform the load impedance Z (60 j45) Ω to match an input...
8.16 Using matching network shown below, find the stub length ls the characteristic impedance Zou...
8.16 Using matching network shown below, find the stub length ls the characteristic impedance Zou and the transmission line length 11 such that the ZL = (80-j40) Ω load impedance is matched to a 50 Ω source. Assume that the characteristic impedance of the stubs Zos = 50 Ω. Zas ls Zin Open or short circuit
8.16 Using matching network shown below, find the stub length ls the characteristic impedance Zou and the transmission line length 11 such that the...
For a load impedance with ZL = 60-180 Ohm, design two single-stub shunt tuning networks (see...
For a load impedance with ZL = 60-180 Ohm, design two single-stub shunt tuning networks (see Figure a) below) to match this load to a 50 Ohm source; use short-circuited stubs. Calculate transmission line and stub dimensions (length and width) if they are implemented as microstrip lines on FR4 which has thickness of 1.5 mm. ZIZ Figure 1. Single stub tuning circuits: a) shunt sub, b) series stub. (1) A. Behagl, RF and Microwave Circuit Design, Techno Search, 2017. ISBN...
[50] You have a load with impedance (10+j10)? at the design frequency, f-100 MHz, that you...
[50] You have a load with impedance (10+j10)? at the design frequency, f-100 MHz, that you want to match to a 50? transmission line (v,-3.108m/s). Using Smith charts, construct matching networks using the following elements: (a) a short-circuited parallel stub, (b) an open- circuited parallel stub, (c) a short-circuited series stub, (d) an open-circuited series stub, (e) a quarter-wave transformer. Assume ideal components. Specify the length of each transmission line in meters. ·
lumped element matching network and single stub 2. A transmission line of characteristic impedance Zo 50Q is termina...
lumped element matching network and single stub
2. A transmission line of characteristic impedance Zo 50Q is terminated with a load impedance Z, 25-j10. Operating frequency is 1GH2 (a) Design impedance matching using L or R lumped element and find the values of L or R. (b) Design impedance matching using single open stub
2. A transmission line of characteristic impedance Zo 50Q is terminated with a load impedance Z, 25-j10. Operating frequency is 1GH2 (a) Design impedance matching using...
6.6. A lossless 100-12 transmission line is to be matched with a 100 +j100- 12 load...
6.6. A lossless 100-12 transmission line is to be matched with a 100 +j100- 12 load using a double-stub tuner (Figure P6.6). Separation between the two stubs is 1/8 and the characteristic impedance is 100S2. A load is connected right at the location of the first stub. Determine the shortest possible lengths of the two stubs to obtain the matched condition, and find the VSWR between the two stubs. 228 IMPEDANCE-MATCHING NETWORKS 100 +j1002 10022 W/8 Figure P6.6
You have an antenna with an input impedance of Z (140 -j35)2 at f 120 MHz....
You have an antenna with an input impedance of Z (140 -j35)2 at f 120 MHz. You would like to match this load to a 70Ω transmission line using a single stub tuner (vp-2.2x108 m/s). Using the Smith chart, determine the distance d away from the load and the length l of a short-circuited parallel stub to accomplish the matching goal at the design frequency. Estimate the reduction in radiated power if the operating frequency is changed to f 125...
Stub Matching Netowrks Use a SMith chart to design an open-circuit shunt-stub transmision line single-stub matching netw...
Stub Matching Netowrks Use a SMith chart to design an open-circuit shunt-stub transmision line single-stub matching network to transform a 50ohm termination to a load impedance of ZL=10+j30ohm with system impedance of 50 ohm. sketch the network, indicate the line lenghts on the sketch, and specify the stub and line lenghts in wavelenghts.
ZL in problem 1: (15+j25) Ohms Problem 2: Quarter Wave Transformers a) Consider the load Zi...
ZL in problem 1: (15+j25) Ohms
Problem 2: Quarter Wave Transformers a) Consider the load Zi of Problem 1. Build a matching network using a quarter wave transformer and a λ/8 shunt stub. Specify whether the shunt is an open or a short stub OPEN 50 Ω 0 SHORT? V4 /8 Figure 1: Matching network for a) b) Do Problem 1 using for the matching network a quarter wave transformer with a 50Ω transmission line in series with the load...
2) Solve this question using Smith Chart ONLY. Attach your chart with your submission. A single s...
2) Solve this question using Smith Chart ONLY. Attach your chart with your submission. A single short circuited series stub tuner is used to match a 100 Ω transmission line to a load impedance "Z, 40 - j 40". Determine: a) The distance of the stub from the load "d1 and d2". (Find two solutions) b) The length of the stub "l1 and 12". c) If a lumped element (inductor or capacitor) is used instead of the stub, find the...
6. Design two single-stub matching networks as shown below. Transform the load impedance Z (60 j45) Ω to match an input impedance of Z,-(75+j90)Ω. Assume that both the stub and the transmission line shown below have a characteristic impedance of Zo-50 Ω. Zot I ZoL.l ZL lm in Open or -) : short circuit , open or short circuit
6. Design two single-stub matching networks as shown below. Transform the load impedance Z (60 j45) Ω to match an input...
8.16 Using matching network shown below, find the stub length ls the characteristic impedance Zou and the transmission line length 11 such that the ZL = (80-j40) Ω load impedance is matched to a 50 Ω source. Assume that the characteristic impedance of the stubs Zos = 50 Ω. Zas ls Zin Open or short circuit
8.16 Using matching network shown below, find the stub length ls the characteristic impedance Zou and the transmission line length 11 such that the...
For a load impedance with ZL = 60-180 Ohm, design two single-stub shunt tuning networks (see Figure a) below) to match this load to a 50 Ohm source; use short-circuited stubs. Calculate transmission line and stub dimensions (length and width) if they are implemented as microstrip lines on FR4 which has thickness of 1.5 mm. ZIZ Figure 1. Single stub tuning circuits: a) shunt sub, b) series stub. (1) A. Behagl, RF and Microwave Circuit Design, Techno Search, 2017. ISBN...
[50] You have a load with impedance (10+j10)? at the design frequency, f-100 MHz, that you want to match to a 50? transmission line (v,-3.108m/s). Using Smith charts, construct matching networks using the following elements: (a) a short-circuited parallel stub, (b) an open- circuited parallel stub, (c) a short-circuited series stub, (d) an open-circuited series stub, (e) a quarter-wave transformer. Assume ideal components. Specify the length of each transmission line in meters. ·
lumped element matching network and single stub
2. A transmission line of characteristic impedance Zo 50Q is terminated with a load impedance Z, 25-j10. Operating frequency is 1GH2 (a) Design impedance matching using L or R lumped element and find the values of L or R. (b) Design impedance matching using single open stub
2. A transmission line of characteristic impedance Zo 50Q is terminated with a load impedance Z, 25-j10. Operating frequency is 1GH2 (a) Design impedance matching using...
6.6. A lossless 100-12 transmission line is to be matched with a 100 +j100- 12 load using a double-stub tuner (Figure P6.6). Separation between the two stubs is 1/8 and the characteristic impedance is 100S2. A load is connected right at the location of the first stub. Determine the shortest possible lengths of the two stubs to obtain the matched condition, and find the VSWR between the two stubs. 228 IMPEDANCE-MATCHING NETWORKS 100 +j1002 10022 W/8 Figure P6.6
You have an antenna with an input impedance of Z (140 -j35)2 at f 120 MHz. You would like to match this load to a 70Ω transmission line using a single stub tuner (vp-2.2x108 m/s). Using the Smith chart, determine the distance d away from the load and the length l of a short-circuited parallel stub to accomplish the matching goal at the design frequency. Estimate the reduction in radiated power if the operating frequency is changed to f 125...
ZL in problem 1: (15+j25) Ohms
Problem 2: Quarter Wave Transformers a) Consider the load Zi of Problem 1. Build a matching network using a quarter wave transformer and a λ/8 shunt stub. Specify whether the shunt is an open or a short stub OPEN 50 Ω 0 SHORT? V4 /8 Figure 1: Matching network for a) b) Do Problem 1 using for the matching network a quarter wave transformer with a 50Ω transmission line in series with the load...
2) Solve this question using Smith Chart ONLY. Attach your chart with your submission. A single short circuited series stub tuner is used to match a 100 Ω transmission line to a load impedance "Z, 40 - j 40". Determine: a) The distance of the stub from the load "d1 and d2". (Find two solutions) b) The length of the stub "l1 and 12". c) If a lumped element (inductor or capacitor) is used instead of the stub, find the...
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