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## Marks 1

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Consider an air filled rectangular waveguide with a cross-section of $$5\,\,cm\,\, \times \,\,3\,cm$$. For this waveguid...
GATE ECE 2014 Set 3
The modes in a rectangular waveguide are denoted by $$T{E_{mn}}\,$$/$$T{M_{mn}}\,$$ where m and n are the eigen numbers ...
GATE ECE 2011
Which of the following statements is true regarding the fundamental mode of the metallic waveguides shown? ...
GATE ECE 2009
The phase velocity of an electromagnetic wave propagating in a hollow metallic rectangular waveguide in the $$T{E_{10}}... GATE ECE 2004 The phase velocity for the$$T{E_{10}}$$mode in an air-filled rectangular waveguide is GATE ECE 2002 The dominant mode in a rectangular waveguide is$$T{E_{10}}$$, because this mode has GATE ECE 2001 The phase velocity of waves propagating in a hollow metal waveguide is GATE ECE 2001 Indicate which one of the following modes do NOT exist in a rectangular resonant cavity. GATE ECE 1999 A rectangular air-filled waveguide has a cross section of$$4\,cm\,\, \times \,\,10cm$$. The minimum frequency which can... GATE ECE 1997 The interior of a$${{20} \over 3}\,\,cm\,\, \times \,\,{{20} \over 4}\,\,cm$$rectangular waveguide is completely fille... GATE ECE 1994 ## Marks 2 More Standard air filled rectangular waveguides of dimensions a = 2.29cm and b = 1.02cm are designed for radar applications. ... GATE ECE 2017 Set 2 Consider an air-filled rectangular waveguide with dimensions a = 2.286 cm and b = 1.016 cm. The increasing order of the ... GATE ECE 2016 Set 3 Consider an air-filled rectangular waveguide with dimensions a = 2.286cm and b = 1.016cm. At 10GHz operating frequency, ... GATE ECE 2016 Set 3 The longitudinal component of the magnetic field inside an air-filled rectangular waveguide made of a perfect electric c... GATE ECE 2015 Set 1 An air-filled rectangular waveguide of internal dimension$$a\,\,cm\,\, \times \,\,b\,\,cm$$(a &gt; b) has a cutoff fre... GATE ECE 2015 Set 2 For a rectangular waveguide of internal dimensions$$a\,\, \times \,\,b$$(a &gt; b), the cut-off frequency for the$$T{...
GATE ECE 2014 Set 2
The magnetic field along the propagation direction inside a rectangular waveguide with the cross section shown in the fi...
GATE ECE 2012
A rectangular waveguide of internal dimensions (a = 4 cm and b = 3 cm ) is to be operated in $$T{E_{11}}$$ mode. The min...
GATE ECE 2008
The $$\mathop E\limits^ \to$$ field in a rectangular waveguide of inner dimensions $$a\,\, \times \,\,b$$ is given by ...
GATE ECE 2007
An air-filled rectangular waveguide has inner dimensions of $$3\,cm\,\, \times \,\,2\,\,cm\,$$. The wave impedance of th...
GATE ECE 2007
A rectangular waveguide having $$T{E_{10}}$$ mode as dominant mode is having a cutoff frequency of 18 GHz for the $$T{E_... GATE ECE 2006 Which one of the following does represent the electric field lines for the$$T{E_{02}}$$mode in the cross-section of a ... GATE ECE 2005 A rectangular metal wave guide filled with a dielectric material of relative permittivity$${\varepsilon _r} = \,4$$has... GATE ECE 2003 A rectangular waveguide has dimensions$$1\,\,cm\,\, \times \,\,0.5\,\,cm$$. Its cut-off frequency is GATE ECE 2000 An optical fiber consists of a cylindrical dielectric rod of refractive index$$n_1$$, surrounded by another dielectric ... GATE ECE 1993 Choose the correct statements. For a wave propagating in an air filled rectangular wave guide GATE ECE 1990 For a normal mode EM wave propagating in a hollow rectangular wave guide GATE ECE 1988 The cut-off frequency of a waveguide depends upon GATE ECE 1987 ## Marks 5 More Consider a parallel plate waveguide with plate separation d as shown in Fig. The electric and magnetic fields for the TE... GATE ECE 2002 Consider a parallel plate waveguide with plate separation d as shown in Fig. The electric and magnetic fields for the TE... GATE ECE 2002 Consider a parallel plate waveguide with plate separation d as shown in Fig. The electric and magnetic fields for the TE... GATE ECE 2002 A rectangular hollow metal waveguide has dimensions a = 2.29 cm and b = 1.02 cm. Microwave power at 10 GHz is transmitte... GATE ECE 2001 A 100 m section of an air-filled rectangular wave-guide operating in the$$T{E_{10}}$$mode has a cross-sectional dimens... GATE ECE 1999 The region between a pair of parallel perfectly conducting planes of infinite extent in the y and z directions is partia... GATE ECE 1998 A rectangular waveguide with inner dimensions 6 cm$$ \times $$3 cm has been designed for a single mode operation. Find... GATE ECE 1998 In an air-filled rectangular waveguide, the vector electric field is given by$$\mathop E\limits^ \to = \cos \,(20\,\...
GATE ECE 1996
A rectangular hollow metal waveguide is required to be so designed to propagate a 9375 MHz signal in its $$T{E_{10}}$$-m...
GATE ECE 1995
A rectangular hollow metal waveguide of internal cross-section of $$7.366\,\,cm\,\, \times \,\,3.556\,cm$$ carries a 3 G...
GATE ECE 1994

## Marks 8

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A rectangular waveguide with cross-section dimensions 5 cm by 3 cm is filled with a dielectric of relative permittivity ...
GATE ECE 1988
A rectangular waveguide with cross-section dimensions 5 cm by 3 cm is filled with a dielectric of relative permittivity ...
GATE ECE 1988

## Marks 10

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Design a rectangilar hollow metal waveguide to operate in the X-band such that at an operating free-space wavelength of ...
GATE ECE 1989

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