Answer / ravi durbha

First of all, any EM wave propagates through a medium with certain frequency and Antenna is a device which operates over band of frequencies. In most cases the dimension of the Antenna is governed by the longest operating wavelength.

Answer / chandra shekhar godiwal

Antenna Size -- lmda/4

lmda -- c/f

Antenna Size -- c/4f

Answer / ashish kashyap

Antenna dimension of EM wave depends on the range of
frequencies transmitted or received by the antenna.
So if we know the range of frequencies then
antenna size = 4*c*f
where c= velocity of light
f= lowest frequency of EM wave.

give any two single byte instructions that clear the accumlator register of 8085

1 Answers  

---

What is meant by mcmurray inverter?

0 Answers  

---

What is the difference in usage between TRIAC and SCR ..

2 Answers  

---

what type of quesions asks in interview?

0 Answers   TCS,

---

how to know working functions of ICs using simple circuits

1 Answers  

---

---

As electromagnetic waves travel in space only one can happen absorption attenuation reflection refraction

4 Answers  

---

WHY THE CUTOFF FREQUENCY IS OF 3 DB??

1 Answers   TCS,

---

will you provide me NTPC exam?

0 Answers   NTPC,

---

Explain the design 8421 to 2421 binary code converter?

0 Answers  

---

which modulation will be suitable for transmitting audio file? is there any transformation needed for transmission?

0 Answers  

---

plz send me questions related to vlsi backend jobs....

0 Answers   Cadence,

---

Normally we say cellphone is a embedded device but computer is not a embedded system. Today cell phones have the facility to install software. so the cell phone is embedded or not

4 Answers  

---