Table 3.

Comparison of Various Antennas and Capacitors in terms of their Dielectric Constant Value.

Device	Dielectric Constant	Conventional Dielectric material	Application	Ref.
Dielectric Resonator Antenna	2.25–2.4	Teflon, Polyethylene	Base station antenna, radar application, RFID, UWB	[106]
Microstrip Patch Antenna	2.1–2.4	Teflon, Polyethylene	GPS, RFID, WiMAx, Telemedecine, Radar	[107]
Printed Circuit Board Antenna	2.1–2.4	FR-4, Rogers RO4003C, Teflon (PTFE)	Radar, Wifi, UWB, GSM, WLAN	[108]
Horn Antenna	2.1–2.4	Polyethylene (PE), Teflon (PTFE)	Radar systems, Satellite communication, Electronic warfare systems, Radio astronomy	[109]
Reflector Antenna	4.5–5.5	Fiberglass	Satellite communication, RFID, Radar astronomy, Deep space communication	[110]
Yagi-Uda Antenna	4.5–5.5	Fibreglass, Plastic	Television reception, Two-way radio communication, Wireless data transmission systems	[111]
Parabolic Dish Antenna	4.5–5.5	Fibreglass, Metal plates	Satellite communication, Radio astronomy, Radar systems, Microwave point-to-point links, Deep space communication	[112]
Log-Periodic Antenna	2.4–4.8	FR-4, Teflon (PTFE)	HF communication systems, Mobile radio communication, Radar systems, Broadcast applications, Military communication systems	[113]
Slot Antenna	2.1–4.8	FR-4, Teflon (PTFE)	Mobile phones and wireless devices, Microwave circuits, Radar systems, RFID	[114]
Ceramic Capacitor	10–3000	Ceramic	Filters, Decoupling	[115]
Electrolytic Capacitor	8–20	Aluminium Oxide	Power supplies, audio circuits	[116]
Mica Capacitor	5–7	Mica	High voltage, RF	[117]
Polymer Film Capacitor	2.2–6	Polyester, Polypropylene	High Temperature Applications, Timing circuits	[118]