Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.1 (p. 634) Photograph of various millimeter wave antennas. Clockwise from top: a high-gain 38 GHz reflector antenna with radome, a prime- focus parabolic antenna, a corrugated conical horn antenna, a 38 GHz planar microstrip array, a pyramidal horn antenna with a Gunn diode module, and a multibeam reflector antenna.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.2 (p. 635) Basic operation of transmit and receive antennas.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.3 (p. 637) The E-plane radiation pattern of a small horn antenna. The pattern is normalized to dB at the beam maximum, with 10 dB per radial division.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.4 (p. 641) Illustrating the concept of background temperature. (a) A resistor at temperature T. (b) An antenna in an anechoic chamber at temperature T. (c) An antenna viewing a uniform sky background at temperature T.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.5 (p. 642) Natural and manmade sources of background noise.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.6 (p. 643) Background noise temperature of sky versus frequency  is elevation angle measured from horizon. Data is for sea level, with surface temperature of 15° C, and surface water vapor density of 7.5 gm/m 3.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.7 (p. 644) Idealized antenna pattern and background noise temperature for Example 13.3.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.8 (p. 645) A receiving antenna connected to a receiver through a lossy transmission line. An impedance mismatch exists between the antenna and the line.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 13.9 (p. 647) A basic radio system.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 649) Diagram of the DBS system for Example 13.4.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 651) Block diagram of a tuned radio frequency receiver.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 651) Block diagram of a direct-conversion receiver.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 652) Block diagram of a single-conversion superheterodyne receiver.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 652) Noise analysis of a microwave receiver front end, including antenna and transmission line contributions.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 657) Photograph of one of the three L-band antenna arrays for a Motorola IRIDIUM communications satellite. The IRIDIUM system consists of 66 satellites in low earth orbit to provide global personal satellite TDMA communications services, including voice, fax, and paging.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 660) Photograph of the PATRIOT phased array radar. This is a C-band multifunction radar that provides tactical air defense, including target search and tracking, and missile fire control. The phased array antenna uses 5000 ferrite phase shifters to electronically scan the antenna beam. Photo provided by Raytheon Company.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 661) Basic monostatic and bistatic radar systems. (a) Monostatic radar system. (b) Bistatic radar system.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 662) A pulse radar system and timing diagram.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 664) Doppler radar system.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 664) Monostatic radar cross section of a conducting sphere.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 666) Noise power sources in a typical radiometer application.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 668) Photograph of a multichannel microwave radiometer used to measure the water vapor profile of the atmosphere. This system has one receiver that operates at 36.5 GHz to sense liquid water in the atmosphere, and a second group of receivers operating from 16 to 28 GHz to sample the 22GHz water vapor resonance. Courtesy of the Microwave Remote Sensing Laboratory, University of Massachusetts at Amherst.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 668) Total power radiometer block diagram.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 670) Balanced Dicke radiometer block diagram.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 671) Refraction of radio waves by the atmosphere.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 672) Average atmospheric attenuation versus frequency (horizontal polarization).

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 672) Direct and reflected waves over the earth’s surface.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 674) A microwave oven.

Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure (p. 676) IEEE Standard C recommended power density limits for human exposure to RF and microwave electromagnetic fields.